PHYSICS
Q1. The following questions consist of two statements Assertion (A) and
Reason(R). Answer these questions selecting the appropriate option
given below:-
a. Both A and Rare true and R is the correct explanation of A.
b. Both A and Rare true but Ris not the correct explanation of A.
C. A is true but Ris false.
d. A is false but R is true.
Assertion (A) : The cork floats while the nail sinks on the
surface of water.
Reason(R) : An object floats or sinks on the basis of its density.
(ii)
Assertion (A) : It is easy to penetrate a nail in the wall as
compared to a screw.
Reason(R) : Pins and nails are made with pointed ends.
(iii)
Assertion (A) : The relative density has no unit.
Reason(R) : The relative density is a ratio of two different
physical quantities.
Answers
Answered by
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(1) Both assertion and reason are true and reason is the correct explanation of assertion.
(2) Both assertion and reason are true and reason is the correct explanation of assertion.
(3) Assertion is true but reason is false.
(1) The cork floats while the nail sinks on the surface of water because an object floats or sinks on the basis of its density.
(2) It is easy to penetrate a nail in the wall as compared to a screw because pins and nails are made with pointed ends.
(3) The relative density has no unit because the relative density is the ratio of two similar physical quantities.
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