Question

Assertion:

Select the correct answer to these questions from the codes (i), (ii), (iii)
and (iv) as given below:

i)Both A and R are true and R is correct explanation of assertion.

ii) Both A and R are true but R is not the correct explanation of the assertion.

iii) A is true but R is false

iv) A is false but R is true.

1. Assertion: when objects are observed through hot air they appear to be moving slightly.

Reason: Hotter air is optically denser and the cooler air is optically rarer.

2. Assertion: The Sun’s disc appears to be flattened at Sunrise and Sunset.

Reason: The Sun is near the horizon at Sunrise and Sunset and Sunlight suffers atmospheric refraction.​​

Answer 1

Answer:

1. false

2 true

3. treu

Explanation:

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Answer 2

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. ... Hence we can say that the assertion and reason both are correct and reason is the correct explanation of assertion.