If the light source in front of an eye becomes bright suddenly :-

If the light source in front of an eye becomes bright suddenly :-
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If the light source in front of an eye becomes bright suddenly :- A. Focus of lens will ... C. Vitreous humor is decondensed D. Pupil will constrict
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When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Last Answer : ANSWER: C

When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive momentarily (c) iris is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Description : When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive ... is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Last Answer : Ans:(c)

When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Last Answer : C. Iris is unable to dilate the pupil immediately (Answer)

When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye lens (b) The retina retains the bright images for some time and becomes momentarily insensitive (c) The iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Description : When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye ... iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Last Answer : Ans:(d)

When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye lens. (2) the retina retains the bright images for sometime and becomes momentarily insensitive. (3) the iris is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Description : When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye ... is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Last Answer : the iris is unable to dilate the pupil immediately.

What is the interplanetary material that burns up and becomes a bright glowing streak of light in earth's atmosphere?

Description : What is the interplanetary material that burns up and becomes a bright glowing streak of light in earth's atmosphere?

Last Answer : Meteors, which are tiny grains of rock.

In Fraunhofer diffraction wave front used is __________. A. Spherical B. Circular C. Plane D. Conical 71.In diffraction pattern of monochromatic light the bright bands formed are __________. A. of uniform intensity B. of non-uniform intensity C. of uniform width D. is of different colors

Description : In Fraunhofer diffraction wave front used is __________. A. Spherical B. Circular C. Plane D. Conical 71.In diffraction pattern of monochromatic light the bright bands formed are __________. A. of uniform intensity B. of non-uniform intensity C. of uniform width D. is of different colors

Last Answer : A. of uniform intensity

Will there be any eye problem if you read a book in bright light ?

Description : Will there be any eye problem if you read a book in bright light ?

Last Answer : Yes, don't wear it like this all the time. You use egg lights or energy bulbs at night.

Danger signals are generally red as red light – (1) is least bright (2) undergoes least deviation (3) has lowest velocity (4) gives comfort to eye

Description : Danger signals are generally red as red light – (1) is least bright (2) undergoes least deviation (3) has lowest velocity (4) gives comfort to eye

Last Answer : (2) undergoes least deviation Explanation: The primary reason why the colour red is used for danger signals is that red light is scattered the least by air molecules. The effect of scattering is inversely ... red which has the highest wavelength of all the colours we can see is scattered the least.

The following are true about spectral sensitivity of the retina: a. in scotopic conditions, the peak sensitivity of the eye is near 500 nm b. under photopic conditions the peak sensitivity is near 555 nm c. in the presence of a bright yellow steady background light the retina has a peak sensitivity near 440 nm to a 25-Hz stimulus d. all above

Description : The following are true about spectral sensitivity of the retina: a. in scotopic conditions, the peak sensitivity of the eye is near 500 nm b. under photopic conditions the peak sensitivity is near 555 nm c ... light the retina has a peak sensitivity near 440 nm to a 25-Hz stimulus d. all above

Last Answer : all above

The bright-flash ERG: a. comes only from the cones b. is generated in a fully dark adapted eye by the highest intensity of light c. can be used to assess the overall retinal integrity in the presence of media opacity d. is abnormal in patients with age-related macular degeneration

Description : The bright-flash ERG: a. comes only from the cones b. is generated in a fully dark adapted eye by the highest intensity of light c. can be used to assess the overall retinal integrity in the presence of media opacity d. is abnormal in patients with age-related macular degeneration

Last Answer : can be used to assess the overall retinal integrity in the presence of media opacity

A far-sighted person, without optical correction, is typically able to see nearby objects more clearly in bright light. The reason for this phenomena is: w) bright light provides better illumination. x) the pupil of the eye narrows which increases the depth of focus. y) the pupil of the eye widens which increases the depth of focus. z) the bright light causes squinting which flattens the eyeball which tends to correct the far-sighted condition.

Description : A far-sighted person, without optical correction, is typically able to see nearby objects more clearly in bright light. The reason for this phenomena is: w) bright light provides better ... bright light causes squinting which flattens the eyeball which tends to correct the far-sighted condition.

Last Answer : ANSWER: X -- THE PUPIL OF THE EYE NARROWS WHICH INCREASES THE DEPTH OF FOCUS

The part of the human brain which is an important relay station for the sensory impulses and also is the origin of many of the involuntary acts of the eye such as the narrowing of the pupil in bright light is the: a) hypothalamus b) midbrain c) corpus callosum d) cerebellum

Description : The part of the human brain which is an important relay station for the sensory impulses and also is the origin of many of the involuntary acts of the eye such as the narrowing of the pupil in bright light is the: a) hypothalamus b) midbrain c) corpus callosum d) cerebellum

Last Answer : ANSWER: B -- Midbrain

Danger signals are generally red as red light (1) is least bright (2) undergoes least deviation (3) has lowest velocity (4) gives comfort to eye

Description : Danger signals are generally red as red light (1) is least bright (2) undergoes least deviation (3) has lowest velocity (4) gives comfort to eye 

Last Answer : undergoes least deviation 

I am black of eye and bright of hair And my feet are firmly in the ground. I love the sun upon my face And I follow it around. When I am dead and gone tis said, That I will droop real low, That I will keep the birds well fed, Standing stiff there in my row. What am I? -Riddles

Description : I am black of eye and bright of hair And my feet are firmly in the ground. I love the sun upon my face And I follow it around. When I am dead and gone tis said, That I will droop real low, That I will keep the birds well fed, Standing stiff there in my row. What am I? -Riddles

Last Answer : A sunflower.

I have an eye in the middle of me, but as you see, I cannot see. I am dark and not far away. You don't see me every day. I am not night and I am not bright. I can have twists and water and scares. What am I? -Riddles

Description : I have an eye in the middle of me, but as you see, I cannot see. I am dark and not far away. You don't see me every day. I am not night and I am not bright. I can have twists and water and scares. What am I? -Riddles

Last Answer : A hurricane.

I am black of eye and bright of hair. I fast in to the ground and follow my **** as he races around the world.What am I? -Riddles

Description : I am black of eye and bright of hair. I fast in to the ground and follow my lord as he races around the world.What am I? -Riddles

Last Answer : I'm a Sunflower.

Which one of the following statements is not correc t? (a) Parallax error is eliminated when there is no change in the staff reading when eye is moved up and down (b) The objective lens is to be focused towards a white or bright background for clear visibility of cross-hairs (c) Temporary adjustments of the dumpy level are to be performed at every set up (d) The eyepiece need not be adjusted after the first set up when the same surveyor is taking readings

Description : Which one of the following statements is not correc t? (a) Parallax error is eliminated when there is no change in the staff reading when eye is moved up and down (b) The objective lens is ... (d) The eyepiece need not be adjusted after the first set up when the same surveyor is taking readings

Last Answer : (b) The objective lens is to be focused towards a white or bright background for clear visibility of cross-hairs

Every single deleted YouTube video ever suddenly becomes available again. What is the first thing you are watching?

Description : Every single deleted YouTube video ever suddenly becomes available again. What is the first thing you are watching?

Last Answer : The original rick rolled video that was unfortunately took down during summer after 12ish years for being the main rick roll link due to copyright

What should a person do if he suddenly becomes unconscious ?

Description : What should a person do if he suddenly becomes unconscious ?

Last Answer : Anyone can faint at any moment while walking back on the road. Even many of your relatives. In this situation, if you take some initial steps without panicking, many unwanted situations can be ... . And if breathing is stopped, it should be taken to the nearest good medical center immediately.

If red hot steel is suddenly immersed in water, the steel becomes:

Description : If red hot steel is suddenly immersed in water, the steel becomes:

Last Answer : If red hot steel is suddenly immersed in water, the steel becomes: A. soft and malleable B. hard and brittle C. tough and ductile D. fibrous

Filtration should be stopped in a filter press, if the (A) Cake becomes very dense (B) Liquor stops flowing out to the discharge (C) Filtration pressure rises suddenly (D) Both (B) & (C

Description : Filtration should be stopped in a filter press, if the (A) Cake becomes very dense (B) Liquor stops flowing out to the discharge (C) Filtration pressure rises suddenly (D) Both (B) & (C

Last Answer : (D) Both (B) & (C

If a driver in front stops suddenly and a collision occurs it and is the fault of?

Description : If a driver in front stops suddenly and a collision occurs it and is the fault of?

Last Answer : It depends on the state, jurisdiction, and sometimes even theinsurance company; however, in many cases, the vehicle from behindis At Fault.Most traffic investigators (whether they be law enforcement orwith ... time, it'sgenerally because they were following too close to the vehicle infront of them.

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla. (b) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse. (c) Hypothalamus activates the parasympathetic division of brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? ... brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Last Answer : (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal cortex (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla (3) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1 ... across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Last Answer : (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla

When filming a video, does the camera go in front or behind the light source?

Description : When filming a video, does the camera go in front or behind the light source?

Last Answer : answer:This is something for you, as an artist, get to choose! Lighting ahead of the camera will be more harsh, for lack of a better word, because it will be closer to the subject. ... a flashlight on certain areas! Since digital photography gives you many chances, experiment and find what you like!

In an ideal case, if a point source of light is placed at the focal point in front of a concave reflector, where will the image form?

Description : In an ideal case, if a point source of light is placed at the focal point in front of a concave reflector, where will the image form?

Last Answer : ANSWER: WILL NOT FORM or FORMS AT INFINITY

When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid (A) Remains horizontal (B) Becomes curved (C) Falls on the front end (D) Falls on the back end

Description : When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid (A) Remains horizontal (B) Becomes curved (C) Falls on the front end (D) Falls on the back end

Last Answer : Answer: Option C

In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes (A) Less than atmospheric pressure (B) More than liquid vapor pressure (C) Less than liquid vapor pressure (D) More than atmospheric pressure

Description : In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes (A) Less than atmospheric pressure (B) More than liquid vapor pressure (C) Less than liquid vapor pressure (D) More than atmospheric pressure

Last Answer : (C) Less than liquid vapor pressure

How focal length is affected when the lens of eye becomes thicker?

Description : How focal length is affected when the lens of eye becomes thicker?

Last Answer : In order to look something near to eye, ciliary muscles make the lens thicker and its focal length becomes shorter. So the image is formed on retina instead of point beyond it.

What part of the eye gets inflamed and becomes pink when dust gets into ? (1) Cornea (2) Choroid (3) Conjunctiva (4) Sclerotic

Description : What part of the eye gets inflamed and becomes pink when dust gets into ? (1) Cornea (2) Choroid (3) Conjunctiva (4) Sclerotic

Last Answer : Conjunctiva

Why does bright light help one to see details?

Description : Why does bright light help one to see details?

Last Answer : I wonder if it’s because it causes the pupil to dilate allowing more light in and more of the object one is looking at. I think we’ll need someone who knows more about eyes to get a definitive answer.

Is an 800-lumen light bulb twice as bright as a 400-lumen one?

Description : Is an 800-lumen light bulb twice as bright as a 400-lumen one?

Last Answer : A lumen is a measure of brightness. In America, incandescent bulbs used to be rated by “candlepower. ” The LED bulbs are much brighter, and are measured by “lumens.” The wattage is not as big a variable, as the brightness. There are conversions for candlepower to lumens online.

Is there any bright flashes of light seen during meditation?

Description : Is there any bright flashes of light seen during meditation?

Last Answer : Well, I’ve been meditating for 26 years and I’ve never seen a blue (or any other color) flash. I would be wary of anyone who told me to expect any kind of “special effects” in meditation. The expectation alone sets you on the wrong path.

Star Light, star bright, first star I see tonight, I wish I may, I wish I might...

Description : Star Light, star bright, first star I see tonight, I wish I may, I wish I might...

Last Answer : I make a wish every time I see a shooting star or when I drive through a tunnel and hold my breath until I’m out of the other side. I don’t care if I don’t believe it’ll work anymore the way I did when I was a kid, it’s still a tradition I’m happy to keep, just because.

How to replace right head light of Nissan Sentra when "bright" head light still works?

Description : How to replace right head light of Nissan Sentra when "bright" head light still works?

Last Answer : answer:What year? That makes a huge difference. There are some years (basically any Sentra pre-2000, I believe) that have only one dual-element bulb per headlight; if either the high or low beam goes out, you replace the entire bulb. And on the first-gen (‘82–86) it is even more fun.

Star Light, Star Bright?

Description : Star Light, Star Bright?

Last Answer : No, but I think it is a charming idea. The skies where I live are spectacular when they are clear. I usually spend a lot of time looking at constellations.

Has anyone used a bright light therapy regime for treating depression or bipolar disorder?

Description : Has anyone used a bright light therapy regime for treating depression or bipolar disorder?

Last Answer : My uncle uses it. Only in the winter. I guess it seems to work. He says he doesn’t really use it that often though, but I’ve heard good stuff about it.

What is bright but sometimes doesn't give off light? -Riddles

Description : What is bright but sometimes doesn't give off light? -Riddles

Last Answer : The moon.

What kinds of conditions can bright light therapy help alleviate?

Description : What kinds of conditions can bright light therapy help alleviate?

Last Answer : Bright light therapy can help alleviate or treat two main types of conditions. The first is skin conditions, most notably acne, but it is also used sometimes to treat psoriasis or ... alleviate is mood and sleep disorders, most notably circadian rhythm disorders and seasonal affective disorder.

What are the problems treated by bright light therapy?

Description : What are the problems treated by bright light therapy?

Last Answer : Bright Light therapy is used to tread S.A.D. (Seasonal Affective Disorder). S.A.D. is a disorder which affects people in the winter, when sunlight is infrequent. Bright light therapy treats ... and Parkinson's disease. The bright light therapy helps people all the way from infants to older adults.

What type of lens or filter do I need to take photos in bright light outdoors?

Description : What type of lens or filter do I need to take photos in bright light outdoors?

Last Answer : You need to adjust the settings for compensating for extreme light.

When You Need Bright Light?

Description : When You Need Bright Light?

Last Answer : A halogen floor lamp with a 300 watt halogen bulb will illuminate a room from wall to wall. While a halogen bulb gives off very radiant, bright light, you must be very careful because it also gets tremendously hot.

A ground on a particular phase of a three-phase low voltage distribution system would be indicated by a _____________. A. high switchboard wattmeter reading B. low switchboard wattmeter reading C. dark or dim switchboard ground detecting light D. bright switchboard ground detecting light

Description : A ground on a particular phase of a three-phase low voltage distribution system would be indicated by a _____________. A. high switchboard wattmeter reading B. low switchboard wattmeter reading C. dark or dim switchboard ground detecting light D. bright switchboard ground detecting light

Last Answer : Answer: C

An AC generator panel is fitted with both synchronizing lamps and a synchroscope. When the synchroscope pointer reaches the noon position, one synchronizing light is bright and the other is dark. This means _____________. A. there is a ground on the phase with the dark lamp B. the phase sequence is incorrect C. the phase sequence is correct D. the generator breaker may be closed

Description : An AC generator panel is fitted with both synchronizing lamps and a synchroscope. When the synchroscope pointer reaches the noon position, one synchronizing light is bright and the other is dark. This ... sequence is incorrect C. the phase sequence is correct D. the generator breaker may be closed

Last Answer : Answer: B

A cyclist riding a cycle fitted with a dynamo to a tyre gets bright light in the bulb connected, when he pedals fast. Why?

Description : A cyclist riding a cycle fitted with a dynamo to a tyre gets bright light in the bulb connected, when he pedals fast. Why?

Last Answer : More magnetic lines of force change with respect to the coil, leading to more current being produced.

In gel electrophoresis, separated DNA fragments can be visualized with the help of (a) acetocarmine in bright blue light (b) ethidium bromide in UV radiation (c) acetocarmine in UV radiation (d) ethidium bromide in infrared radiation.

Description : In gel electrophoresis, separated DNA fragments can be visualized with the help of (a) acetocarmine in bright blue light (b) ethidium bromide in UV radiation (c) acetocarmine in UV radiation (d) ethidium bromide in infrared radiation.

Last Answer : (b) ethidium bromide in UV radiation

requires high temperature, light rainfall, 210 frost free days and bright sunshine. a. Jute b. Cotton c. Tea d. Coffee e. Rice

Description : requires high temperature, light rainfall, 210 frost free days and bright sunshine. a. Jute b. Cotton c. Tea d. Coffee e. Rice

Last Answer : b. Cotton

Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed vision in bright light (b) Distribution More Evenly concentrated in distributed centre of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained

Description : Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed ... of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained

Last Answer : (a) Overall Vision in poor Colour vision function