To an astronaut in the spacecraft, the sky colour appears to be (a) Blue (b) White (c) Black (d) Orange red

To an astronaut in the spacecraft, the sky colour appears to be (a) Blue (b) White (c) Black (d) Orange red
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To an astronaut in a spacecraft, the sky appears to be (1) Blue (2) White (3) Dark (4) Red

Description : To an astronaut in a spacecraft, the sky appears to be (1) Blue (2) White (3) Dark (4) Red

Last Answer : Dark

To an astronaut sky appears (1) white (2) rich blue (3) light blue (4) dark

Description : To an astronaut sky appears (1) white (2) rich blue (3) light blue (4) dark

Last Answer : dark

An astronaut in outer space will observe sky as (1) white (2) black (3) blue (4) red

Description : An astronaut in outer space will observe sky as (1) white (2) black (3) blue (4) red

Last Answer : black

In absence of atmosphere, the colour of sky appears (a) blue (b) black (c) red (d) yellow

Description : In absence of atmosphere, the colour of sky appears (a) blue (b) black (c) red (d) yellow

Last Answer : (b) black

Why the sky appears dark instead of blue to an astronaut in space? -Space

Description : Why the sky appears dark instead of blue to an astronaut in space? -Space

Last Answer : The sky appears blue when the scattering of light takes place through the atmosphere.The blue color of the sky is due to scattering of light from the atmosphere.As there is no atmosphere in ... sky appears dark instead of blue to an astronaut in space. Public Domain Image, source: Shutterstock

The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Description : The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Last Answer : (3) The atmosphere scatters blue colour more than the others Explanation: Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by ... the atmosphere (approximately 25% of the incident radiation when the sun is high in the Sky.

The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Description : The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Last Answer : (3) The atmosphere scatters blue colour more than the others Explanation: Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by ... the atmosphere (approximately 25% of the incident radiation when the sun is high in the Sky.

The sky appears blue because (1) all colours interfere to produce blue (2) in white light, the blue component dominates (3) the atmosphere scatters blue colour more than the others (4) it is actually blue

Description : The sky appears blue because (1) all colours interfere to produce blue (2) in white light, the blue component dominates (3) the atmosphere scatters blue colour more than the others (4) it is actually blue

Last Answer : the atmosphere scatters blue colour more than the others

23 Which one of the following sets of colour combinations is added in colour vision in TV? A. Red, green and blue B. Orange, black and violet C. White, red and Yellow D. Green, Yellow and Blue

Description : 23 Which one of the following sets of colour combinations is added in colour vision in TV? A. Red, green and blue B. Orange, black and violet C. White, red and Yellow D. Green, Yellow and Blue

Last Answer : ANSWER: A

Sky appears to an astronaut–

Description : Sky appears to an astronaut–

Last Answer : Black

The colour of sky appears blue due to – (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Description : The colour of sky appears blue due to – (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Last Answer : (3) scattering of shorter wave lengths Explanation: The sunlit sky is blue because air scatters short-wavelength light more than longer wavelengths. Since blue light is at the short wavelength end of the ... that the human eye perceives blue when looking toward parts of the sky other than the sun.

The colour of sky appears blue due to (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Description : The colour of sky appears blue due to (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Last Answer : scattering of shorter wave lengths

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : (1) From brown to blueblack Explanation: Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of ... already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blueblack colour.

potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Description : potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : (1) From brown to blueblack Explanation: The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black colour.

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue–black (2) From brown to orange–red (3) From blue to pink (4) From pink to blue–green

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue–black (2) From brown to orange–red (3) From blue to pink (4) From pink to blue–green

Last Answer : From brown to blue–black

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : From brown to blue-black

An astronaut inside a spacecraft is in a state of weightlessness. This implies that A. The mass of the astronaut is reduced to zero B. Gravity inside the spacecraft ceases to act C. The astronaut is outside the D. The astronaut and the spacecraft are both in a free-falling state

Description : An astronaut inside a spacecraft is in a state of weightlessness. This implies that A. The mass of the astronaut is reduced to zero B. Gravity inside the spacecraft ceases to act C. The astronaut is outside the D. The astronaut and the spacecraft are both in a free-falling state

Last Answer : ANSWER: D

In the absence of the earth's atmosphere, sky would appear – (1) blue (2) deep red (3) white (4) black

Description : In the absence of the earth's atmosphere, sky would appear – (1) blue (2) deep red (3) white (4) black

Last Answer : (4) black Explanation: Sky appears blue because the tiny particles of the earth's atmosphere scatter the blue colour (short wavelength) of the sunlight more dominantly than other wavelengths. A blue ... in the absence of earth's atmosphere because there would be no particles to scatter the light.

In the absence of the earth’s atmosphere, sky would appear (1) blue (2) deep red (3) white (4) black

Description : In the absence of the earth’s atmosphere, sky would appear (1) blue (2) deep red (3) white (4) black

Last Answer : black

What are the primary colors of Pigment? A. White, Black, Blue B. Red, Yellow, Blue (Answer) C. Red, Orange, Blue D. Red, Green, Blue

Description : What are the primary colors of Pigment? A. White, Black, Blue B. Red, Yellow, Blue (Answer) C. Red, Orange, Blue D. Red, Green, Blue

Last Answer : B. Red, Yellow, Blue (Answer)

What are the primary colors of Light? 33 A. White, Black, Blue B. Red, Yellow, Blue C. Red, Orange, Blue D. Red, Green, Blue (Answer)

Description : What are the primary colors of Light? 33 A. White, Black, Blue B. Red, Yellow, Blue C. Red, Orange, Blue D. Red, Green, Blue (Answer)

Last Answer : D. Red, Green, Blue (Answer)

Natalie had fourteen balls. Each one color. She alternated the colors each day, there was a blue, pink, purple, green, red, yellow, black, white, orange, turquoise, tan, neon pink, and brown. Each day of the week she also alternated fast food places. McDonald's, Chick-fil-A, In-and-out, Wendy's, Good eats, Burger King, and Arby's None in respective order. What day of the week will she go to Arby's? What ball will she have while she is at Arby's? -Riddles

Description : Natalie had fourteen balls. Each one color. She alternated the colors each day, there was a blue, pink, purple, green, red, yellow, black, white, orange, turquoise, tan, neon pink, and brown. Each day of the ... the week will she go to Arby's? What ball will she have while she is at Arby's? -Riddles

Last Answer : She will go to Arby's on Monday, for that is the first day of the week and A is the first letter of the alphabet. So on Tuesday she would go to Burger King. On Wednesday she would go to Chick- ... because red is the first color of the rainbow. So on Tuesday she would have a Orange ball. And so on.

Blue colour of the sky and red colour of sunset is due to

Description : Blue colour of the sky and red colour of sunset is due to

Last Answer : Ans. Dispersion

Persons who are colour-blind cannot distinguish between – (1) yellow and white (2) green and blue (3) red and green (4) black and yellow

Description : Persons who are colour-blind cannot distinguish between – (1) yellow and white (2) green and blue (3) red and green (4) black and yellow

Last Answer : (3) red and green Explanation: A person with colour-blindness has trouble seeing red, green, blue, or mixtures of these colours. The most common type is redgreen colours - blindness, where red and green are as the same colour.

Which combination of colour is the most convenient during day and night time ? (1) Organe and blue (2) White and black (3) Yellow and blue (4) Red and green

Description : Which combination of colour is the most convenient during day and night time ? (1) Organe and blue (2) White and black (3) Yellow and blue (4) Red and green

Last Answer : Red and green

What is the natural colour of lichen‘s juice? a) Blue b) Red c) Purple d) Orange

Description : What is the natural colour of lichen‘s juice? a) Blue b) Red c) Purple d) Orange

Last Answer : c) Purple

Which colour is the complementary colour of yellow? (1) Blue (2) Green (3) Orange (4) Red

Description : Which colour is the complementary colour of yellow? (1) Blue (2) Green (3) Orange (4) Red

Last Answer : (1) Blue Explanation: Complementary colours are pairs of colours that are of "opposite" hue in some colour model. In colour theory, two colours are called complementary if, when mixed in the proper ... -perceptual colour models, the neutral colours (white, grey, and black) lie along a central axis.

Which colour is the complementary colour of yellow ? (1) Blue (2) Green (3) Orange (4) Red

Description : Which colour is the complementary colour of yellow ? (1) Blue (2) Green (3) Orange (4) Red

Last Answer : Blue

Why the Sky appears blue?

Description : Why the Sky appears blue?

Last Answer : Due to the shorter wavelength of blue colour; it is scattered more than the red colour of longer wave- length

The sky appears blue because the earth’s atmosphere -----? A. Scatters blue light (Answer) B. Reflects blue light C. Transmits blue light D. Has actual blue cover

Description : The sky appears blue because the earth’s atmosphere -----? A. Scatters blue light (Answer) B. Reflects blue light C. Transmits blue light D. Has actual blue cover

Last Answer : A. Scatters blue light (Answer)

The sky appears blue because

Description : The sky appears blue because

Last Answer : the atmosphere scatters blue color more than the others

The sky appears blue because the earth’s atmosphere _____? A. Scatters blue light B. Transmits blue light C. Reflects blue light D. Has actual blue cover

Description : The sky appears blue because the earth’s atmosphere _____? A. Scatters blue light B. Transmits blue light C. Reflects blue light D. Has actual blue cover

Last Answer : ANSWER: C

The sky appears blue due to – (1) Rayleigh scattering (2) Mie scattering (3) Back scattering (4) None of the above

Description : The sky appears blue due to – (1) Rayleigh scattering (2) Mie scattering (3) Back scattering (4) None of the above

Last Answer : (1) Rayleigh scattering Explanation: The blue colour of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little ... absorbed blue light is then radiated in different directions. It gets scattered all around the sky.

The sky appears blue because of – (1) Atmospheric water vapour (2) Scattering of light (3) Reflection on sea water (4) Emission of blue wavelength by the sun

Description : The sky appears blue because of – (1) Atmospheric water vapour (2) Scattering of light (3) Reflection on sea water (4) Emission of blue wavelength by the sun

Last Answer : (2) Scattering of light Explanation: The sky is blue because the molecules in the air scatter light in the higher wavelengths (that is, the blue light), while lower wavelength light (that is ... reflected down from the scattering is blue, therefore a blue sky. This is called Rayleigh scattering.

The sky appears blue due to (1) Rayleigh scattering (2) Mie scattering (3) Back scattering (4) None of the above

Description : The sky appears blue due to (1) Rayleigh scattering (2) Mie scattering (3) Back scattering (4) None of the above

Last Answer : Rayleigh scattering

The sky appears blue because of (1) Atmospheric water vapour (2) Scattering of light (3) Reflection on sea water (4) Emision of blue wavelength by the sun

Description : The sky appears blue because of (1) Atmospheric water vapour (2) Scattering of light (3) Reflection on sea water (4) Emision of blue wavelength by the sun

Last Answer : Scattering of light

The term ‘Blue Shift’ is used to indicate? A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object? B. Turning a star from white to blue C. In future sun would become blue D. Black hole was blue at its start E. None of these

Description : The term Blue Shift' is used to indicate? A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object? B. Turning a star from white ... . In future sun would become blue D. Black hole was blue at its start E. None of these

Last Answer : A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object?

An object which absorbs all colours and reflects none appears: (1) White (2) Grey (3) Blue (4) Black

Description : An object which absorbs all colours and reflects none appears: (1) White (2) Grey (3) Blue (4) Black

Last Answer : (4) Black Explanation: A surface that absorbs all colours, reflecting none, is said to be black. Black is not a colour; it absorbs all the colours of the visible spectrum and reflects none of them to the eyes. White is a colour.

An object which absorbs all colours and reflects none appears: (1) white (2) grey (3) blue (4) black

Description : An object which absorbs all colours and reflects none appears: (1) white (2) grey (3) blue (4) black

Last Answer : black

The sun appears what color to an astronaut in space? -Technology

Description : The sun appears what color to an astronaut in space? -Technology

Last Answer : FROM THE SPACE STATION, MUCH OF THE ATMOSPHERE ISN'T IN THE WAY TO SCATTER LIGHT FROM THE SUN, SO THE FULL VISIBLE SPECTRUM COMES THROUGH AS A BRIGHT WHITE. ASTRONAUTS HAVE CAPTURED MANY IMAGES OF THE WHITE SUN FROM SPACE

The colour of the ocean appears blue because the sunlight falling on it is (a) Reflected (b) Refracted (c) Absorbed (d) Scattered

Description : The colour of the ocean appears blue because the sunlight falling on it is (a) Reflected (b) Refracted (c) Absorbed (d) Scattered

Last Answer : Ans:(d)

The colour of the ocean appears to be blue because the sunlight falling on it is – (1) reflected (2) refracted (3) diffracted (4) scattered

Description : The colour of the ocean appears to be blue because the sunlight falling on it is – (1) reflected (2) refracted (3) diffracted (4) scattered

Last Answer : (4) scattered Explanation: The reason the ocean is blue is due to the absorption and scattering of light. The blue wavelengths of light are scattered, similar to the scattering of blue light in the sky ... the red and weak in the blue, thus red light is absorbed quickly in the ocean leaving blue.

The colour of the ocean appears to be blue because the sunlight falling on it is (1) reflected (2) refracted (3) diffracted (4) scattered

Description : The colour of the ocean appears to be blue because the sunlight falling on it is (1) reflected (2) refracted (3) diffracted (4) scattered

Last Answer : scattered

An astronaut in outer space will observe sky as -General Knowledge

Description : An astronaut in outer space will observe sky as -General Knowledge

Last Answer : Hence the appearance of light is blue. But in outer space there is no scattering of light. There are no particles in space so there is no scattered light, and hence no light will reach the astronaut and astronaut in outer space will observe sky as Black

For an astronaut in a space ship, how does the sky appear?

Description : For an astronaut in a space ship, how does the sky appear?

Last Answer : Black

Which one of the following sets of color combinations is added in color vision in TV’? A. Red, green and blue (Answer) B. Orange, back and violet C. White. red and yellow D. Yellow, green and blue

Description : Which one of the following sets of color combinations is added in color vision in TV’? A. Red, green and blue (Answer) B. Orange, back and violet C. White. red and yellow D. Yellow, green and blue

Last Answer : A. Red, green and blue (Answer)

Blue light is always less efficient in photosysthesis than (a) White (b) Red (c) Orange (d) Violet

Description : Blue light is always less efficient in photosysthesis than (a) White (b) Red (c) Orange (d) Violet

Last Answer : (b) Red

Four identical samples of a metal are heated to different temperatures. Based on the colors of their incandescences, which sample is the hottest? The sample that is: w) blue-white x) bright red y) yellow z) orange

Description : Four identical samples of a metal are heated to different temperatures. Based on the colors of their incandescences, which sample is the hottest? The sample that is: w) blue-white x) bright red y) yellow z) orange

Last Answer : ANSWER: W -- BLUE-WHITE

The sky from moon appears black. Why?

Description : The sky from moon appears black. Why?

Last Answer : Ans: as the moon has no atmosphere, so the sky looks completely black when viewed from the moon.

Why does the Sun appears orange-red at the time of Sunrise and Sunset.

Description : Why does the Sun appears orange-red at the time of Sunrise and Sunset.

Last Answer : The earth's dust, gas and air particles scatter the sun's light in different directions. Violet light has a peculiar property due to which it gets scattered the most. Red light gets scattered the least. At ... earth. Since red is scattered the least, it is this colour that we see as it reaches us.