Light MCQ question and answer with solution

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Each section contains 100 MCQs on Light .

Lens is made up of

A) pyrex glass B) flint glass C) ordinary glass D) cobalt glass

Discuss

Answer & Solution

Answer: Option B

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

In fibre optics communication, the signal travels in the form of

A) Light wave B) Radio wave C) Micro wave D) Electric wave

Discuss

Answer & Solution

Answer: Option A

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

Persistance of vision is the principle behind

A) camera B) spectroscope C) cinema D) periscope

Discuss

Answer & Solution

Answer: Option C

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

Red light is used in traffic signals because

A) colour of blood is red B) animals can identify red C) red light disperses least D) red is the symbol of danger

Discuss

Answer & Solution

Answer: Option C

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

A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is

A) 40 cm B) 60 cm C) 80 cm D) 120 cm

Discuss

Answer & Solution

Answer: Option C

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

An object is placed in front of a concave mirror at a point between its center of curvature and the focus point. Where will the image be formed?

A) focus B) at the point between the center of curvature and the point of focus C) Between the center of curvature and infinity D) Center of curvature

Discuss

Answer & Solution

Answer: Option C

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

Assertion (A): The danger signal is made up of red colour.
Reason (R): Red colour is scattered the least.
Select the correct answer:

A) Both (A) and (R) are true and (R) is the correct explanation of (A) B) Both (A) and (R) are true, but (R) is not the correct explanation of (A) C) (A) is true, but (R) is false D) (A) is false, but (R) is true

Discuss

Answer & Solution

Answer: Option A

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

Consider the following natural phenomena.
1. Terrestrial heating
2. Reflection of light
3. Refraction of light
4. Diffraction of light
Due to which of these phenomena is mirage formed?

A) Only 1 and 2 B) Only 2, 3 and 4 C) Only 1 and 3 D) Only 4

Discuss

Answer & Solution

Answer: Option C

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

If a convex mirror is used to create a reflection of a real object, which of the following statements is false?

A) The image is real B) The image is small C) The image is erect D) The image is formed between P and F

Discuss

Answer & Solution

Answer: Option A

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