Question # 1

The path (or trajectory) described by a projectile is

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a parabola

a hyperbola

a circle

a straight line

The branch of physics which deals with the structure and properties of solids is called:

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Plasma physics

Solid state physics

Any of above

Astrophysics

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

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Double the size

Same size

Half the size

None of these

Blood is an

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Compressible fluid

incompressible fluid

hard

none of them

The property of fluids due to which they resist their own flow is called:

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Drag force

Surface tension

Viscosity

None of these

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

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F=eVB

F=e²V/B

F=e/VB

F=B²/ev

The intensity of emitted energy (with wavelength) radiated from a black body at different temperatures was initially measured by:

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Lummer

Planck

Pringsheim

Both (A ) and (B)

Both (A) and (C)

The term Brownian movement refers to

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irregular motions of small particles suspended in a fluid

convection currents in a liquid or gas

convection currents in a gas but not in a liquid

the stretching of a body beyond its elastic limit

The resistance of an incandescent lamp is

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Smaller when switched on

Greater when switched off

The same whether it is switch off or switch on

Greater when switched on

The concept of field theory was put forward by

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Franklin

Kepler

Oersted

Michael Faraday

The current produced by moving a loop of wire across a magnetic field is called:

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Direct current

Magnetic current

Alternating current

Induced current

None of these

Dimension of impulse is same as that of

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Force

Torque

Momentum

Angular momentum

Approximate power of flash light in watts: (2 cells)

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1.2

1.5

1.55

1.56

An instrument called a sphygmomanometer measure

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Density of water

Blood pressure

Milk density

None of these

Examples of crystalline solids are:

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Copper

Zirconia

NaCI

All of these

Both A and B

Relativistic mechanics was developed by

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Davison and Germer

Heisenberg

Max. Planck

Albert Einstein

The ratio of volume stress/volume strain is called as

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modulus

Bulk modulus

shear modulus

Young's modulus

When the fuel ignited it turns to a gas at

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Low pressure

High pressure

Extremely high pressure

None of these

The dimensions of torque are

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ML²T^-2

MLT²

MLT^-1

ML²T²

The rate of change of momentum of a molecule is equal to:

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Pressure

Work

Density

Force

Wavelength of light, on the average, is given by:

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10^-14m

10^-10m

10^-6m

10^-4m

The two vectors to be combined have magnitude 60 N and 35 N. Pick the correct answer from those given below and tell why is it the only one of the three that is correct.

(i) 100 N

(ii) 70 N

(iii) 20 N

Choose an answer

(i) is correct

(ii) 20 N

(iii) is correct

(ii) may be correct

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