Light MCQ question and answer with solution

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Each section contains 100 MCQs on Light .

The colour of light is determined by its

A) Amplitude B) Wavelength C) Intensity D) Velocity

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

What is the substance through which light can pass?

A) Translucent B) Opaque C) Transparent D) Vitreous

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A person wears spectacles with concave lenses. It means that normally (when not using glasses) the image of distant objects is focused in his eyes

A) behind the retina B) in front of the retina C) on the retina D) on the blind spot

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

LEDs and CFLs are replacing ordinary bulbs for illumination due to

A) energy efficiency B) affordability C) easy availability D) convenient disposal

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Rajat has hypermetropia. What type of lens will the ophthalmologist recommend to correct his vision?

A) Bifocal B) Concave C) Progressive D) Convex

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Golden view of sea shell is due to

A) diffraction B) dispersion C) polarisation D) reflection

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The Sun and the Moon appear elliptical near the horizon because of

A) Refraction B) Optical illusion C) Interference phenomenon D) Their actual shape

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

When a mirror is rotated by an angle θ, the reflected ray will rotate by

A) 0 B) $$\frac{\theta }{2}$$ C) θ D) 2θ

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

When a ray of light travels from a denser medium to a rarer medium, it bends:

A) towards the normal and slow down B) away from the normal and slow down C) towards the normal and its speed increases D) away from the normal and its speed increases

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A disorder in which a person cannot see a distant object clearly is called.

A) hypermetropia B) night blindness C) myopia D) strivismus

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Light MCQ question and answer with solution | Physics Gk MCQs