Maximum Marks: 80
Time allowed: Two and half hours
Answers to this Paper must be written on the paper provided separately.
You will not be allowed to write during first 15 minutes.
This time is to be spent in reading the question paper.
The time given at the head of this Paper is the time allowed for writing the answers.
Section-A
(Attempt all questions from this Section.)
Question 1
Choose one correct answer to the questions from the given options:
(i) The moment of a force about a given axis depends :
(a) only on the magnitude of force
(b) only on the perpendicular distance of force from the axis
(c) neither on the force nor on the perpendicular distance of force from the axis
(d) on both the force and its perpendicular distance from the axis.
(ii) The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value
of x is:
(a) h/3 (b) h/4 (c) 2h/3 (d) 3h/4
(iii) A woman draws water from a well using a fixed pulley. The mass of the bucket and the water
together is 10 kg. The force applied by the woman is 200 N. The mechanical advantage is (Take, g
=10m/s?)
(a) 2 (b) 20 (c) 0.05 (d) 0.5
(iv) A ray of light IM is incident on a glass slab ABCD as shown in the figure. The emergent ray for this
incident ray is
(a) NQ (b) NR (c) NP (d) NS