Question # 1

Centripetal acceleration is also called ________ acceleration

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Tangential

Radial

Angular

None of these

In a normal healthy person the value of diastolic pressure is

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75 - 80 torr

100 torr

120 torr

none of them

If a material object moves with the speed of light 'C' its mass becomes

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Equal to its rest mass

Four times of its rest mass

Double of its rest mass

Infinite

Which of the following statements for an object in equilibrium is not true?

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The object must be at rest

The object can be at rest

The object is moving at constant speed

The acceleration of the object is zero

Which one of the following is an example of SHM

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Motion in a plane

Motion in a swing

Motion in a car

None of these

Rutherford performed an experiment on nuclear reactions in:

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1718 A.D

1818 A.D

1918 A.D

2001 A.D.

1701 A.D.

The only significant motion possessed by the mono-atomic gas represented is:

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Translatory

Rotatory

Vibratory

None of these

When a stress changes length, it is called the

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compressional stress

tensile stress

shear stress

any one of them

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 terminal velocity of a small size spherical body of radius R moving in a fluid varies as

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R

R²

1/R

(1/R)²

The driection of vector si space is specified by:

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One angle

Two angles

Three angles

None of above

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

The least distance of he distinct vision is

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20 cm

22 cm

25 cm

30 cm

For earth the escape velocity is 11.2 kms^-1. For a planet whose mass and radius are twice those of the earth, the escape velocity will be

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44.8 kms^-1

22.4 kms^-1

11.2 kms^-1

2.8 kms^-1

The rotational analogue of power is given by

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τω

τv

F ω

τ/ω

One watt-hour is equivalent to

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3.6 x 10³ joule

3.6 x 10^-3 joule

6.3 x 10³ joule

6.3 x 10^-3 joule

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric stain is called

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Young's modulus

Bulk modulus

shear modulus

all of them

A car is moving high velocity when it takes a turn.A force acts on it outwardly because of

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Centripetal force

Centrifugal force

Gravitational force

All of these

Joule-second is the unit of:

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Energy

Heat

Planck’s constant

None of these

Two charges are placed a certain distance apart in air. When a metallic sheet is placed between them the electric static force between them will

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Decrease

Increase

Remains unchanged

Become zero

A string vibrates in 1 loop has frequency 25 Hz if it moves in 2 loops its frequencywould be:

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25 Hz

50 Hz

12.5 Hz

5Hz

In semiconductors, at 0 K, the electrons in conduction band is

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Partially filled

No

Yes

None of these

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