MEDIUM
NEET
IMPORTANT
Earn 100

If and respectively denote energy and gravitational constant, then has the dimensions of:
(a)
(b)
(c)
(d)

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Important Questions on Physical World and Measurement
MEDIUM
NEET
IMPORTANT
A screw gauge gives the following readings when used to measure the diameter of a wire
Main scale reading :
Circular scale reading :
Given that on main scale corresponds to on the circular scale. The diameter of the wire from the above data is:

MEDIUM
NEET
IMPORTANT
If force , acceleration and time are chosen as the fundamental physical quantities. Find the dimensions of energy.

EASY
NEET
IMPORTANT
The angle of (minute of arc) in radian is nearly equal to

EASY
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IMPORTANT
A plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the

EASY
NEET
IMPORTANT
Time intervals measured by a clock give the following readings: and . What is the percentage relative error of the observations?

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IMPORTANT
Dimensions of stress are:

MEDIUM
NEET
IMPORTANT
Taking into account of the significant figures, what is the value of ?

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IMPORTANT
A screw gauge has least count of and there are divisions in its circular scale. The pitch of the screw gauge is:
