Question

For question numbers 12, 13 and 14, two statements are given- one labelled Assertion (A) and the other

labelled Reason (R).
Select the correct answer to these questions from the codes (a), (b), (c) and (d) as

given below:


a) Both A and R are true, and R is correct explanation of the assertion.


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


c) A is true, but R is false.


d) A is false, but R is true.


12 Assertion: The sex of a child is determined by the mother.


Reason: Humans have two types of sex chromosomes : XX and XY



13 Assertion: If a graph is plotted between the potential difference and the current

flowing, the graph is a straight line passing through the origin.


Reason: The current is directly proportional to the potential difference.



14 Assertion: White light is dispersed into its seven-colour components by a prism.


Reason: Different colours of light bend through different angles with respect to the

incident ray as they pass through a prism.​

Answer 1

Explanation:

12 .option.d

13.option.a

14.option.a