Question

Q.10 Four cars A, B, C and D are moving on a leveled road. Their distance versus time graphs
struction:
Section-A (Ques. No. 01 to 20 per 1 marks)
.1 Immunisation/accination started with
(a) L. Pasteur (b)
A. Fleming
(C) E. Jenner (d) J.E. Salk
.2 Malarial parasite after entering the human body reaches the
(a)
Liver and then RBCs (b) Stomach & the RBCS
(c) Liver & then WBCs (d) Stomach and then salivary glands.
2.3
On tripling the speed of Motion of body, the change in K.E. is
(a) 9 times (b) 8 times
4 times
3 times
2.4 If the bulbs of 60w and 40w are connected is series to a 220v source the bulb which glows
brighter is
(a) 60W
(b) 40 W
(C) Both glow equally bright
(d) Depends on the make of the bulb.
2.5 In the explosion of a cracker/bomb
(a) energy is produced
(b)
momentum is conserved
(c) internal energy is absorbed (d) momentum remains un-conserved
Q.6 Weight if 1 kg. is
(a) 9.8 N
(b) 1kg-wt (C)
both (a) & (b)
Q.7 Acceleration due to gravity on the surface of the moon is th. of its value on the surface of
the earth as they have different
(a) Mass (b)
density
radius
(d)
All of these
Q.8
A ball of mass m hitting the ground with a velocity u bounces back with a velocity v in a
small time interval 't the force exerted on the ground is
(a)
m() (b)
me=)
Q.9
A particle is moving in a circular path of radius r. The displacement after half a circle would
be :-
(a) Zero
(b)
2r
are shown in fig. Choose the correct statement.
(a) Car A is faster than Car D
(b) Car B is the slowest
(c) Car D is faster than Car C
(d) Car C is the slowest
Q.11 Bone matrix is rich in
(a) Fluoride & calcium
(b)
(d) eithen (a) or (b)
3
mu
mu
2πη
Distance
calcium & phosphorus​

Answer 1

Answer:

1a, 2b 3c, 4a, 5d,6c, 7d, 8b, 9b, 10c,11d

Explanation:

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