# Physics | Study Mode

Question 1
A
sensity
B
volume
C
specific heat capacity
D
electrical resistance
##### Explanation

Question 2
A
callipers
B
metre rule
C
micometer screw guage
D
vernier callipers

Question 3
A
72 kgm-3
B
720 kgm-3
C
7200 kgm-3
D
72000 kgm-3
##### Explanation
P = 0.72 x 1000 = 720

Question 4
A
circular and translational
B
rotational and translational
C
rotational and circular
D
rectilinear and circular
##### Explanation

Question 5
A
is independent of the nature of the surface in contact
B
depends on the area of surface in contact
C
depends on the relative motion between the surface in contact
D
depends on the weight of the moving body
##### Explanation

Question 6
A
if the resultant force acting on the particle is zero, then it is in dynamic equillibrium
B
If the resultant force acting on the acting on the particle is greater than zero, then it is moving with a uniform velocity
C
the rate of change of its momentum with time tales place in a direction opposite to that of its motion
D
the particle falling freely covers equal distances in equal time interval

Question 7
A
200 kmh-1
B
100 kmh-1
C
40 kmh-1
D
20 kmh-1
##### Explanation
R = 110 + 90 = 200

Question 8
A
changing
B
uniform
C
increasing
D
decreasing

Question 9
A
10ms-1
B
15ms-1
C
20ms-1
D
30ms-1
##### Explanation
V2 = U2 + 2gh

= 02 + 2 x 10 x 45 = 30

Question 10
A
is not equally deformed
B
when deformed regains it shape
C
is brittle
D
when deformed remains deformed
##### Explanation

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