A color with a wavelength longer than that of yellow is: w) red x) blue y) violet z) green

A color with a wavelength longer than that of yellow is: w) red x) blue y) violet z) green
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ANSWER: W -- RED
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A beam of light is incident on a large block of glass. The index of refraction of the glass is greater than one. Is the wavelength of the light in the glass: w) longer than x) shorter than y) the same as the wavelength of the light in the air?

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Last Answer : ANSWER: X -- SHORTER THAN 

Chlorine is used in swimming pools as a disinfecta In its natural, standard state it is a: w) blue liquid x) colorless crystals y) yellow-green gas z) reddish-brown gas

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Which of these travels in glass with minimum velocity? (1) red light (2) violet light (3) green light (4) yellow light

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Which of the following colour of light deviates least through the prism? (1) yellow (2) green (3) violet (4) red

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Which colour of light shows maximum deviation when passed through a prism? (1) Red (2) Green (3) Violet (4) Yellow

Description : Which colour of light shows maximum deviation when passed through a prism? (1) Red (2) Green (3) Violet (4) Yellow

Last Answer : (3) Violet Explanation: When passed through a prism violet colour of light shows maximum deviation. As white light passes through a prism, the voilet component, having the minimum wave length observes the maximum refractive index for the prism and, thus, gets deviated to the maximum extent.

Which of these travels in glass with minimum velocity ? (1) red light (2) violet light (3) green light (4) yellow light

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Last Answer : violet light

Which of the following colour of light deviates least through the prism? (1) yellow (2) green (3) violet (4) red

Description : Which of the following colour of light deviates least through the prism? (1) yellow (2) green (3) violet (4) red

Last Answer : red

Which colour of light shows maximum deviation when passed through a prism ? (1) Red (2) Green (3) Violet (4) Yellow

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Last Answer : Violet

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Last Answer : ANSWER: X -- ULTRA-VIOLET

Which one of the following colours has the longest wavelength? A. Yellow B. Blue C. Red D. Green

Description : Which one of the following colours has the longest wavelength? A. Yellow B. Blue C. Red D. Green

Last Answer : ANSWER: C

Which one of the following colours has the longest wavelength? A. Yellow B. Blue C. Red D. Green

Description : Which one of the following colours has the longest wavelength? A. Yellow B. Blue C. Red D. Green

Last Answer : ANSWER: C

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 

The Doppler Effect predicts that the spectrum of light from a visible body moving AWAY from the Earth will experience a shift in frequency when viewed from Earth. This particular shift is known as the: w) Blue shift x) Neutral shift y) Red shift z) Dirac shift

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Last Answer : ANSWER: Y -- RED SHIFT

Arrange the following group of colored lights in the order of INCREASING wavelength: RED, ORANGE, GREEN, BLUE

Description : Arrange the following group of colored lights in the order of INCREASING wavelength: RED, ORANGE, GREEN, BLUE

Last Answer : ANSWER: BLUE, GREEN, ORANGE, RED

The colour of Emerald is - (1) Violet (2) Yellow (3) Deep Green (4) Prussian Blue

Description : The colour of Emerald is - (1) Violet (2) Yellow (3) Deep Green (4) Prussian Blue

Last Answer : (3) Deep Green Explanation: The most desirable emerald colors are bluish green to pure green, with vivid color saturation and tone that's not too dark. The most-prized emeralds are highly transparent. Their color is evenly distributed, with no eyevisible colorzoning.

Enrichment of uranium by gaseous diffusion relies on the fact that uranium-235 diffuses through holes in the barriers more readily than uranium-238 does because uranium-235 is: w) a different chemical compound. x) a different wavelength. y) resistant to magnetism. z) slightly lighter than uranium-238.

Description : Enrichment of uranium by gaseous diffusion relies on the fact that uranium-235 diffuses through holes in the barriers more readily than uranium-238 does because uranium-235 is: w) a different chemical ... x) a different wavelength. y) resistant to magnetism. z) slightly lighter than uranium-238.

Last Answer : ANSWER: Z -- SLIGHTLY LIGHTER THAN URANIUM-238.

A solar cell does NOT respond to red light, but DOES respond to green light. The solar cell will be able to respond to: w) microwaves x) infra-red light y) ultraviolet light z) all of the above

Description : A solar cell does NOT respond to red light, but DOES respond to green light. The solar cell will be able to respond to: w) microwaves x) infra-red light y) ultraviolet light z) all of the above

Last Answer : ANSWER: Y -- ULTRAVIOLET LIGHT

When white light passes through a red plate of glass and then through a green plate of glass which one of the following things occur? w) the light is totally absorbed x) the light that emerges is a combination of red and green y) the light that emerges lacks only its red and green components z) the light that emerges is green

Description : When white light passes through a red plate of glass and then through a green plate of glass which one of the following things occur? w) the light is totally absorbed x) the light that emerges is ... ) the light that emerges lacks only its red and green components z) the light that emerges is green

Last Answer : ANSWER: W -- THE LIGHT IS TOTALLY ABSORBED

Which of the following types of light are strongly absorbed by plants? (1) Violet and orange (2) Blue and red (3) Indigo and yellow (4) Yellow and violet

Description : Which of the following types of light are strongly absorbed by plants? (1) Violet and orange (2) Blue and red (3) Indigo and yellow (4) Yellow and violet

Last Answer : (2) Blue and red

Which of the following types of light are strongly absorbed by plants? (1) Violet and orange (2) Blue and red (3) Indigo and yellow (4) Yellow and violet

Description : Which of the following types of light are strongly absorbed by plants? (1) Violet and orange (2) Blue and red (3) Indigo and yellow (4) Yellow and violet

Last Answer : (2) Blue and red Explanation: As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected.