Physics Test 38

Result

Physics Test 38

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Weekly Quiz Competition

Question 1
4 / -1

A screw gauge has 100 divisions on circular scale and pitch is 0.5 mm. When we fix a wire between it's jaws, it reads 2 divisions on main scale and 48 divisions on circular scale. If the screw gauge has no zero error, radius of wire is :-

A
2.48 mm

B
1.24 mm

C
0.62 mm

D
0.31 mm
Question 2
4 / -1

As a ball rolls down the inclined plane, the power of gravitational force P_g and frictional force P_fthereafter :-

A
P_g increases with time and P_f remains constant with time.

B
P_g as well as P_f remain constant with time.

C
P_g as well as P_f increase with time.

D
P_g remains constant and P_f decreases with time.