Light - Study Mode

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[#246] The phenomenon of light associated with the appearance of blue colour of the sky is

(A) interference

(B) reflection

(C) refraction

(D) scattering

Correct Answer

(D) scattering

[#247] A plane glass slab is kept over coloured letters, the letter which appears least raised is

(A) green

(B) violet

(C) red

(D) blue

Correct Answer

(B) violet

[#248] . . . . . . . . helps the eye to adjust the focal length of the lens.

(A) Lens

(B) Ciliary body

(C) Retina

(D) Entire eye ball

Correct Answer

(B) Ciliary body

[#249] When a beam of white light is allowed to fall on a prism, the maximum deviation of the emerging light occurs for

(A) red light

(B) violet light

(C) yellow light

(D) blue light

Correct Answer

(B) violet light

[#250] To an astronaut in space, the sky will appear to be

(A) violet

(B) red

(C) blue

(D) black

Correct Answer

(D) black