Question

a) Both A and R are true, and R is correct explanation of theassertion.
b) Both A and R are true, but R is not the correct explanation of theassertion.
c) A is true, but R is false.
d) A is false, but R is true.
Assertion : A lemon kept in water in a glass tumbler appears to be bigger than
14
its actual size.
Reason:When a ray of light passes from denser medium to rarer medium
then it bends away from the normal.
I
15
Assertion : Clear sky appears blue.
Reason: Blue colour of light has smaller wavelength, so it scatters more in
upper layer of atmosphere in comparison to the other layers.

16.Assertion : Respiration in living beings is called exothermic reaction.
Reason: Respiration in living beings involves with absorption of heat energy.
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Answer 1

Answer:

ans 14 is absolutely write A

15 is also A

16 is alsoB

Answer 2

Answer:

14. Both a and r are true but r is not the correct explanation of the assertion

15. Both A and R are true and R is the correct explanation for assertion