Question # 1

With the increase of temperature viscosity

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Increase

Decrease

Remains same

Doubles

The vertical and horizontal range will be equal id angle of projection is

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76°

45°

60°

120°

The wave form of S.H.M will be

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square wave

sine wave

rectified wave

saw-tooth wave

Radioactivity was discovered by

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Rutherford

Henri Becqureal

Maxwell

James Chadwick

A body moving along the circumference of a circle of radius R completes one revolution. The radius of the covered path to the angle subtended at the center is:

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Radius of the circle

Twice the radius

Thrice the radius

None of these

Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends

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120 C

240 C

20 C

4 C

A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is:

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0.05 m

0.08 m

0.8 m

0.008 m

Direction of motion ______ in circular motion:

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Changes off and on

Changes continuously

Does not change

None of them

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

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20 minutes

48 minutes

10 minutes

5 minutes

During the upward motion of the projectile, the vertical component of velocity.

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Decreases

Increases

Remains constant

None of these

When the charged particle is projected at right angles to the field, then experienced by it will be:

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Maximum

Zero

qvB

Both (A) and (B)

Both (A) and (C)

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

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0.1 V

8 V

2 V

0.5 V

The results of spectra obtained by Blamer were expressed in 1896 by

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Bohr

Rydberg

Planck

Rutherford

Coulomb

An important part of inkjet printer is:

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Toner

Drum

Deflection plates

Heated roles

None of these

Physics details with the study of:

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Matter

Energy

Both of them

Human body

In the expression F x t, the force F is

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total force

instantaneous force

average force

all of them

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

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Power

Work

Pressure

None of these

The percentage of available heat energy converted into work by a diesel engine is roughly

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35 %`

40 %

35 - 40 %

25 %

Root out the conventional source of energy:

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Energy from blomass

hydroelectric energy

Geothermal energy

None of these

The charged nucleus of an atom itself spins its magnetic field

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equal to the field produced by orbital electrons

greater than the field produced by orbital electrons

much weaker than the field produced by orbital electrons

none of these

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

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deformation

stretching

compressing

elasticity

Which are not the elementary particles?

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Photons

Leptons

Hadrons

Quarks

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.

Tick the one which is not a crystalline solid:

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Zirconia

Glass

Copper

Ceramic solid

An ionic compound

The angle between centripetal force and displacement of the body moving in a circle is:

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0°

90°

180°

None of these

Which one is related to angular motion:

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Moment of a force

Moment of inertia

Moment of momentum

None of these

If a vector lies in second quadrant, than B_xand B_yare:

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-,+

+,-

+,+

-,-

Electric flux is defined by the relation

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E.A.

E x A

E/A

none of these

When the p-n junction is forward biased its resistance is of the order of

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few mega ohms

few kilo ohms

few ohms

few milli ohms

A capacitor acts as an infinite resistance for

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AC

DC

Both AC and DC

Neither AC nor DC

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

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F = B²

F = 0

F = B

F = B/2

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