Question # 1

In a moving coil galvanometer, the deflecting couple depends upon

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area of the coil

number of turns of coil

value of magnetic field

all of the above

The passage of current is accompanied by a magnetic field in the surrounding space:

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Always accompanied

Sometimes accompanied

Never accompanied

Any of above

None of these

The work done in moving a body between two points in a conservation field is independent of the:

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Direction

Force applied

Path followed by the body

Power

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

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Zero to 3 N

1 N to 13 N

13 N to 3 N

None of these

Resolving power in mth order diffraction for grating is given by:

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R = N/m

R = m/N

R = N x m

None of these

A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when

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The coil is distorted

The coil is rotated

The coil is neither distorted nor rotated

Both A and B

None of these

The ratio of linear stress/linear strain is called as

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Yong's modulus

Bulk modulus

Shear modulus

Modulus

Which of the following diode is used for the detection of light

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photo diode

light emitting diode

photo voltaic cell

all of them

SI Unit of work is

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Nm^-1

Joule

Nms

Both a and b

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

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outwards

inwards

in either way

none of these

When each particle of the fluid moves along a smoth path, this path is known as

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straight path

smooth path

haphazard path

steamline

The burnt gas expelled from the rocket engine with

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High velocity

Extremely high velocity

Very high velocity

None of these

The maximum stress that a material can withstand is known as

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plastic point

elastic point

yield point

ultimate tensile strength

A fighter plane is chasing another plane,when it opens fire its speed

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Increases

Decreases

Remains constant

Its stops

The blood pressure of the person

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Decreases with age

Increases with age

Remains the same

None

The viscosity of red blood cells increase than water is from

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2 to 3 times

3 to 4 time

4 to 5 times

3 to 5 times

The ratio of electro static force to the gravitational force between them is of the order of

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10³⁶

10³⁸

10⁴⁰

10⁴²

Unit of universal gas constant is SI is:

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W K^-1 mol^-1

J/Nk^-1 mol^-1

Jk^-1 mol^-1

erg K^-1 mol^-1

Donor impurities donate

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Holes

Electrons

Both holes and electrons

None of them

_____________ suggested the basic formula of fractional force F is liquid

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Maxwell

Newton

Plank

Stoke

According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to

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speed of wave motion

speed of medium

speed of electrons

speed of protons

Inertial mass and gravitational mass are

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opposite

identical

identical when there is no friction

all of them

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