Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 65

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If pressure $P,$ velocity $V$ and time $T$ are taken as fundamental physical quantities, the dimensional formula of the force is-

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Important Questions on Physical World and Measurement

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 66

A particle of masss

m

is suspended by a spring if the frequency of its oscillation is

n = c m^{x} k^{y}

here

c

is a constant then the value of

x

and

y

are -

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 67

The velocity of a freely falling body changes as

g^{p} h^{q}

, where

g

is the acceleration due to gravity and

h

is the height. The values of

p

and

q

are

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 68

In the formula

V = E^{b} d^{a},

if

V; E

and

d

are the velocity of longitudinal waves, bulk modulus of elasticity and density of the gaseous medium respectively, then the values of a and

b

are respectively -

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 69

If force

(F)

area

(A)

and density

(D)

are taken as the fundamental units, the dimensional representation of the Young modulus will be

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 70

A spherical body of mass

m

and radius

r

is allowed to fall in a medium of coefficient of viscosity

η .

The time in which its velocity rises to

0.63

times the critical velocity

v

is known as

τ

.

τ

is dimensionally represented by

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 71

The dimensional formula of coefficient of viscosity is

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 72

The ratio of the dimensions of Planck's constant and that of moment of inertia is the dimensions of :

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 74

The dimensions of potential difference are-