Q1.Copper of fixed volume V is drawn into a wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is ∆l. If Y represents the Young’s modulus, then which of the following graphs is a straight line?
Answer : Option CExplaination / Solution: No Explaination.
Q2.A certain number of spherical drops of a liquid of radius R coalesce to form a single drop of radius R and volume V. If T is the surface tension of the liquid, then
Answer : Option CExplaination / Solution: No Explaination.
Q5.In
a horizontal pipe of non-uniform cross section, water flows with a velocity of
1 m s-1 at a point where the diameter of the pipe is 20 cm. The
velocity of water (m s-1) at a point where the diameter of the pipe
is
Answer : Option BExplaination / Solution: No Explaination.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0