Question # 1

The distance from eye to near point is taken as:

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10 cm

15 cm

20 cm

25 cm

A second's pendulum is a pendulum whose time period is

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1 second

2 seconds

3 seconds

4 seconds

Acceleration in a body is always produced in the direction of :

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Velocity

Weight

Force

Both B and C

When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:

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60°

90°

120°

150°

The closed loop gain of the non-inverting amplifier is given by

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G = R₂/R₁

G = -R₂/R₁

G = 1 - R₂/R₁

G = 1 + T₂/R₁

The counter, which also provides the power to the G.M. tube is called:

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Thin mica window

thin glass window

Airy window

Wooden window

None of these

The unit of work in CGS system is

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Joule

Erg

Dyne

Watt

When a conductor is moved across a magnetic field, the redistribution of charge sets up:

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Magnetic field

Electrostatic field

Electromagnetic field

All of these

None of these

The process which is carried out at constant temperature is known as

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adiabatic process

isothermal process

isochoric process

none of them

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

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polonium uranium

uranium and radium

polonium and radium

none of these

Physics deals with the study of

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Matter

Energy

Both of them

Human Body

The least distance of distinct vision changes with

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Time

Health

illness

Age

When a bullet is fired by a gun, the gun move backward with a

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velocity less than that of the bullet

velocity equal to that of the bullet

velocity greater to that of the bullet

remains at rest

The ability of the body to return to its original shape is called

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deformation

stretching

compressing

elasticity

The field in which the work done be independent of the path followed is called

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Conservative fields

Non-conservative field

Varying intensity field

None of these

A wider objective and the use of blue light of short wavelength produces

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Interference

Diffraction

Less diffraction

Polarization

The internal energy of molecules of a substance is

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K.Energy

P.Energy

Vibrational energy

All of these

If the angle of refraction is 90^o, for which the angle of incidence is called

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Incident angle

Critical angle

Angle of emergence

None of these

For a fixed force, larger is the mass of a body, the

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greater is its acceleration

smaller is its acceleration

smaller is its weight

zero is its acceleration

The dimensions of work are

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[MLT^-2]

[ML²T^-1]

[ML²T²]

[ML²T^-2]

The magnification of a compound microscope of object and eye piece of focal lengths f₀and f_e, respectively is

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Plane microwaves are incident on a long slit having a width of 5 cm.The wavelength of the microwaves if the first minima is formed at 30° is

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25 cm

5 cm

2.5 cm

5 mm

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