Which is the colour of the outer edge of the rainbow?

Which is the colour of the outer edge of the rainbow?
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Answer :

– Red
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I can be all colours of the rainbow, Or have no colour at all. Sometimes I'm empty, Sometimes I'm full. What am I? -Riddles

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Last Answer : Glass.

What is the central colour of a rainbow?

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An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like closely packed tiles, is found to be present at (a) outer surface of ovary (b) inner lining of Fallopian tube (c) inner lining of stomach (d) inner lining of cheeks.

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Last Answer : (d) inner lining of cheeks.

Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than (A) 42 diameters from the centre of the column (B) 42 diameters from the inner edge of the column (C) 42 diameters from the outer edge of the column (D) 24 diameters from the centre of the column

Description : Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than (A) 42 diameters from the centre of the column (B) 42 diameters from the inner edge of ... ) 42 diameters from the outer edge of the column (D) 24 diameters from the centre of the column

Last Answer : Answer: Option C

Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of (A) 0.1 L from the outer edge of column (B) 0.1 L from the centre edge of column (C) Half the distance of projection (D) One-fourth the distance of projection

Description : Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of (A) 0.1 L from the outer edge of column (B) 0.1 L from the centre edge of column (C) Half the distance of projection (D) One-fourth the distance of projection

Last Answer : Answer: Option B

The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid (A) 2 r2 (B) 2 2 r2 (C) 2 r2 /2 (D) 2 r2 /4

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Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made (A) To have a reduced fall (B) Horizontal (C) To have slope of the camber on the other half of the carriageway (D) None of these

Description : Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made (A) To have a reduced fall (B) Horizontal (C) To have slope of the camber on the other half of the carriageway (D) None of these

Last Answer : Answer: Option C

no super elevation is provided on a road along curves, pot holes may develop at (A) Inner edge of the road (B) Outer edge of the road (C) Centre of the road (D) Nowhere on the road

Description : no super elevation is provided on a road along curves, pot holes may develop at (A) Inner edge of the road (B) Outer edge of the road (C) Centre of the road (D) Nowhere on the road

Last Answer : Answer: Option B

Raising of outer edge of a road with respect to inner edge, is known (A) Super elevation (B) Cant (C) Banking (D) All the above

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If the width of carriage way is 12.5 metres, outer edge 50 cm higher than the inner edge, the required super elevation is (A) 50 cm (B) 1 in 25 (C) 1 in 400 (D) 1 in 40

Description : If the width of carriage way is 12.5 metres, outer edge 50 cm higher than the inner edge, the required super elevation is (A) 50 cm (B) 1 in 25 (C) 1 in 400 (D) 1 in 40

Last Answer : Answer: Option B

The most commonly adopted method to provide super-elevation on roads, is by pivoting the road surface about (A) Outer edge so that the inner edge is lowered (B) Crown so that outer edge is raised and inner edge is lowered (C) Inner edge so that outer edge is raised (D) None of these

Description : The most commonly adopted method to provide super-elevation on roads, is by pivoting the road surface about (A) Outer edge so that the inner edge is lowered (B) Crown so that outer edge is raised and inner edge is lowered (C) Inner edge so that outer edge is raised (D) None of these

Last Answer : Answer: Option C

The range of spread from the wall base to outer edge of a brick work foundation does not exceed (A) 1/2 horizontal to 1 vertical (B) 2/3 horizontal to 1 vertical (C) 1 horizontal to 1 vertical (D) 2 horizontals to 1 vertical

Description : The range of spread from the wall base to outer edge of a brick work foundation does not exceed (A) 1/2 horizontal to 1 vertical (B) 2/3 horizontal to 1 vertical (C) 1 horizontal to 1 vertical (D) 2 horizontals to 1 vertical

Last Answer : Answer: Option C

The term string is used for (A) The underside of a stair (B) Outer projecting edge of a tread (C) A sloping member which supports the steps in a stair (D) A vertical member between two treads

Description : The term string is used for (A) The underside of a stair (B) Outer projecting edge of a tread (C) A sloping member which supports the steps in a stair (D) A vertical member between two treads

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What determines the arc of a rainbow?

Description : What determines the arc of a rainbow?

Last Answer : answer:The rainbow that you see is for your eyes only. Someone standing off to your left or right will be seeing an entirely different rainbow in a slightly different position in the sky. The rainbow that you ... above the horizon, then you won't see any of the arc at all (assuming flat terrain).

Rainbow is due to - (1) absorption of sunlight in minute water droplets (2) diffusion of sunlight through water droplets (3) ionisation of water deposits (4) refraction and reflection of sunlight by water droplets

Description : Rainbow is due to - (1) absorption of sunlight in minute water droplets (2) diffusion of sunlight through water droplets (3) ionisation of water deposits (4) refraction and reflection of sunlight by water droplets

Last Answer : (4) refraction and reflection of sunlight by water droplets

Rainbow is formed due to – (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Description : Rainbow is formed due to – (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Last Answer : (4) refraction and reflection Explanation: A rainbow is an optical phenomenon that is caused by both reflection and refraction of light in water droplets resulting in a spectrum of light appearing in ... water, then reflected inside on the back of the droplet and refracted again when leaving it.

Which of the following statements is true when we see 'rainbow'? (1) We face sun and raindrops (3) 11 Km/Sec. (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky

Description : Which of the following statements is true when we see 'rainbow'? (1) We face sun and raindrops (3) 11 Km/Sec. (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky

Last Answer : (3) 11 Km/Sec. Explanation: We see rainbows because of the geometry of raindrops. When the sun shines from behind us into the rain, incident rays of light enter the drop and are refracted inwards ... in water droplets in the Earth's atmosphere, resulting in a spectrum of light appearing in the sky.

Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : (2) mirrors Explanation: In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. In a rainbow, raindrops in the air act as tiny prisms. Light enters the raindrop ... In the process, it is broken into a spectrum just like it is in a triangular glass prism.

In which one of the following the phenomenon of total internal reflection of light is used? (1) Formation of mirage (2) Working of binoculars (3) Formation of rainbow (4) Twinkling of stars

Description : In which one of the following the phenomenon of total internal reflection of light is used? (1) Formation of mirage (2) Working of binoculars (3) Formation of rainbow (4) Twinkling of stars

Last Answer : (3) Formation of rainbow Explanation: When the angle of incidence is greater than the critical angle, no refraction occurs. Instead, the incident beam is reflected, obeying the Law of Reflection. This ... , Total Internal Reflection occurs at the rear of the raindrop - the water-to-air interface.

Which of the following is optical illusion? (1) Rainbow (2) Earthshine (3) Halo (4) Mirage

Description : Which of the following is optical illusion? (1) Rainbow (2) Earthshine (3) Halo (4) Mirage

Last Answer : (4) Mirage Explanation: A mirage is a naturally occurring optical illusion or phenomenon in which light rays are bent due to refraction in layers of air of varying density. The image usually is upside down, ... the sky image seen in the distance is really a water or oil puddle acting as a mirror.

Rainbow is formed due to (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

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Last Answer : refraction and reflection

In which one of the following the phenomenon of total internal reflection of light is used ? (1) Formation of mirage (2) Working of binoculars (3) Formation of rainbow (4) Twinkling of stars

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Last Answer : Formation of rainbow

Which of the following is optical illusion? (1) Rainbow (2) Earthshine (3) Halo (4) Mirage

Description : Which of the following is optical illusion? (1) Rainbow (2) Earthshine (3) Halo (4) Mirage

Last Answer : Mirage

Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : mirrors

Which of the following statements is true when we see ‘rainbow’ ? (1) We face sun and raindrops (2) The Sun remains behind us and we face raindrops (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky

Description : Which of the following statements is true when we see ‘rainbow’ ? (1) We face sun and raindrops (2) The Sun remains behind us and we face raindrops (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky

Last Answer : The Sun remains behind us and we face raindrops

What is edge-correction ?

Description : What is edge-correction ?

Last Answer : : In the resonant state, the opening of the tube has a pulsating point, but the scientist has shown mathematically that the pulsating point is located at the top of x = 0.3d, not at all ... tube. For this reason, it is necessary to correct the resonant length. This is called edge-correction.

A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground. (1) 1 : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.

Description : A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground ... : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.

Last Answer : (1) 1 : 1 Explanation: The stone which is throws upward will have the same velocity of u at the point of its original position when it is falling down. Another stone is thrown downwards with u. So ... will hit the ground with same velocity. So the ratio between the speeds of two stones will be 1:1

Point where all weight of object acts is called A. central point B. center of gravity C. edge D. center of mass

Description : Point where all weight of object acts is called A. central point B. center of gravity C. edge D. center of mass

Last Answer : center of gravity

A copper rod which is 1 centimeter in diameter carries a current of 5 amps. The current is distributed uniformly throughout the rod. The magnetic field half way between the axis of the rod and its outside edge is: w) zero. x) pointing radially outward y) pointing radially inward z) circles the axis of the rod

Description : A copper rod which is 1 centimeter in diameter carries a current of 5 amps. The current is distributed uniformly throughout the rod. The magnetic field half way between the axis of the rod and its ... ) zero. x) pointing radially outward y) pointing radially inward z) circles the axis of the rod

Last Answer : ANSWER: Z -- CIRCLES THE AXIS OF THE ROD

A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Description : A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Last Answer : ANSWER: W -- CONSTANT

A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground. (1) 1 : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.

Description : A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground ... : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.

Last Answer :  1 : 1

To an astronaut, how does outer space appear?

Description : To an astronaut, how does outer space appear?

Last Answer : – Black

Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Description : Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Last Answer : (4) outer surface of the body Explanation: In all conductors, charges reside on the surface. The reason for this is that conductors have free electrons, that is, the electrons are loosely ... field just, outside the conductor is perpendicular to the surface and that the field inside is zero.

Wollen clothes keep the body warm because – (1) Wool increases the temperature of the body (2) Wool is a had conductor (3) Wool absorbs radiant heat from outer objects (4) Wool rejects heat from the outer objects

Description : Wollen clothes keep the body warm because – (1) Wool increases the temperature of the body (2) Wool is a had conductor (3) Wool absorbs radiant heat from outer objects (4) Wool rejects heat from the outer objects

Last Answer : (2) Wool is a had conductor Explanation: It is just because woolen clothes have fibres and between those fibres air is trapped which reduces heat loss. Air reduces heat loss because it is an ... have a greater bulk than other textiles, and retain air, which causes the product to retain heat.

Ozone layer in the outer atmosphere helps us in – (1) reflecting radio waves and makes radio communication possible (2) regulating he temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Description : Ozone layer in the outer atmosphere helps us in – (1) reflecting radio waves and makes radio communication possible (2) regulating he temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Last Answer : (4) absorbing U-V radiations Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (03) which absorbs 97- 99% of the Sun's medium-frequency ultraviolet light.

In the process of magnetization of a bar (1) The entire bulk of the bar gets magnetized (2) Only the surface of the bar gets magnetized (3) Only the ends of the bar get magnetized (4) Only some parts of the outer layers of the bar get magnetized

Description : In the process of magnetization of a bar (1) The entire bulk of the bar gets magnetized (2) Only the surface of the bar gets magnetized (3) Only the ends of the bar get magnetized (4) Only some parts of the outer layers of the bar get magnetized

Last Answer : (1) The entire bulk of the bar gets magnetized Explanation: In classical electromagnetism, magnetization or magnetic polarization is the vector field that expresses the density of permanent or induced magnetic ... the process of magnetization of a bar, the entire bulk of the bar gets magnetized.

In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Description : In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Last Answer : (4) White hole Explanation: A White Hole is a hypothetical hole in outer space from which energy, stars, and other celestial matter emerge or explode. It is a theoretical celestial object into which matter is funneled from a black hole.

Study of life in outer space is known as - (1) endbiology (2) exobiology (3) enterbiology (4) neobiology

Description : Study of life in outer space is known as - (1) endbiology (2) exobiology (3) enterbiology (4) neobiology

Last Answer : (2) exobiology Explanation: Exobiology is a branch of biology concerned with the search for life outside the Earth and with th effects of extra-terrestrial environments on living organisms.

The earth-wire of a cable is connected to – (1) the outer metallic body of the appliance (2) the fuse of the appliance (3) the filament of the appliance (4) short circuitry of the appliance

Description : The earth-wire of a cable is connected to – (1) the outer metallic body of the appliance (2) the fuse of the appliance (3) the filament of the appliance (4) short circuitry of the appliance

Last Answer : (2) the fuse of the appliance Explanation: Earth wire prevents Electric shocks. It is connected to the electrical cable of an appliance to prevent electric shocks. Actually it has very low resistance and allows current to pass through it easily.

A characteristic of the noble gases is that they all: w) have eight electrons in the outer shell x) have low stability y) form many compounds z) have filled outer electron shells

Description : A characteristic of the noble gases is that they all: w) have eight electrons in the outer shell x) have low stability y) form many compounds z) have filled outer electron shells

Last Answer : ANSWER: Z -- HAVE FILLED OUTER ELECTRON SHELLS

Refracting telescopes, if uncorrected, suffer from chromatic aberration. Chromatic aberration occurs because: w) red light is focused more strongly than blue light x) blue light is focused more strongly than red light y) the outer light rays are focused more strongly than the central rays, z) the central light rays are focused more strongly than the outer rays.

Description : Refracting telescopes, if uncorrected, suffer from chromatic aberration. Chromatic aberration occurs because: w) red light is focused more strongly than blue light x) blue light is focused more strongly than ... central rays, z) the central light rays are focused more strongly than the outer rays.

Last Answer : ANSWER: X -- BLUE LIGHT IS FOCUSED MORE STRONGLY THAN RED LIGHT 

A hollow METALLIC sphere has an inner radius A and an outer radius B. If charge is placed on the inner surface, that is at radius A, where is the charge located after it has come to rest?

Description : A hollow METALLIC sphere has an inner radius A and an outer radius B. If charge is placed on the inner surface, that is at radius A, where is the charge located after it has come to rest?  

Last Answer : ANSWER: ON THE SPHERE'S OUTER SURFACE or OUTSIDE RADIUS B 

Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Description : Where do the electrical charges reside in a charged conductor? (1) at the core (2) throughout the body (3) depended upon the nature of the body (4) outer surface of the body

Last Answer : outer surface of the body

In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Description : In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Last Answer : White hole

Ozone layer in the outer atmosphere helps us in (1) reflecting radio waves and makes radio communication possible (2) regulating the temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Description : Ozone layer in the outer atmosphere helps us in (1) reflecting radio waves and makes radio communication possible (2) regulating the temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Last Answer :  absorbing U-V radiations

The earth-wire of a cable is connected to (1) the outer metallic body of the appliance (2) the fuse of the appliance (3) the filament of the appliance (4) short circuitry of the appliance

Description : The earth-wire of a cable is connected to (1) the outer metallic body of the appliance (2) the fuse of the appliance (3) the filament of the appliance (4) short circuitry of the appliance

Last Answer : the fuse of the appliance

In the process of magnetisation of a bar (1) The entire bulk of the bar gets magnetised (2) Only the surface of the bar gets magnetised (3) Only the ends of the bar get magnetised (4) Only some parts of the outer layers of the bar get magnetised

Description : In the process of magnetisation of a bar (1) The entire bulk of the bar gets magnetised (2) Only the surface of the bar gets magnetised (3) Only the ends of the bar get magnetised (4) Only some parts of the outer layers of the bar get magnetised

Last Answer : The entire bulk of the bar gets magnetised

Wollen clothes keep the body warm because (1) Wool increases the temperature of the body (2) Wool is a bad conductor (3) Wool absorbs radiant heat from outer objects (4) Wool rejects heat from the outer objects

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Last Answer :  Wool is a bad conductor

Why haven’t they yet bred sheep in rainbow colors?

Description : Why haven’t they yet bred sheep in rainbow colors?

Last Answer : Because like people, sheep are racist and prefer to mate with sheep of similar colors