Assertion (A): When we enter a cinema hall from bright light, we cannot see properly for some time.
Reason (R): Pupils contract in dim light.

A is false, but R is true.

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A is true, but R is false.

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Both A and R are true, and R is the correct reason for A.

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Both A and R are true, but R is not the correct reason for A.

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Solution

The correct option is B A is true, but R is false.
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Similar questions

Q. (a) Explain the functions of the following parts of the eye:
(i) cornea
(ii) iris
(iii) pupil
(iv) ciliary muscles
(v) eye-lens
(b) If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?
(c) Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.

Assertion (A): When we enter a cinema hall from bright light, we cannot see properly for some time.
Reason (R): Pupils contract in dim light.

Q. When we enter a cinema hall from a bright area, we cannot see properly for some time. This is because:

Q. Why we are not able to see the objects when we enter from bright light to a room with dim light?

Explain why, we cannot see our surroundings clearly when we enter a darkened cinema hall from bright sunshine but our vision improves after some time.

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Assertion (A): When we enter a cinema hall from bright light​, we cannot see properly for some time. Reason (R): Pupils contract in dim light.

The correct option is B A is true, but R is false.-

Assertion (A): When we enter a cinema hall from bright light, we cannot see properly for some time.
Reason (R): Pupils contract in dim light.

The correct option is B A is true, but R is false.
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