Physics Quiz 12

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Physics Quiz 12

1 / 50

In forward bias the width of potential barrier_____________?

2 / 50

The rectangular voltage is an example of____________________?

3 / 50

The acceleration of a projection on the diameter for a particle moving along a circle is_______________?

4 / 50

Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?

5 / 50

Which one of the following possesses greater penetration power ?

6 / 50

An alpha particle in a single encounter__________________?

7 / 50

A three-dimensional image is obtained by________________?

8 / 50

The range of the projectile at 30 deg and 60 deg are__________________?

9 / 50

I ^. (j^ x k^) is equal to______________?

10 / 50

Which instrument is suitable to measure the internal diameter of a test tube?

11 / 50

Which of the following pairs does not have identical dimensions ?

12 / 50

For normal adjustment, length of astronomical telescope is______________?

13 / 50

Motorcycle safety helmet extends the time of collision hence decreasing the________________?

14 / 50

One torr is equal to_________________?

15 / 50

The Fahrenheit and centigrade scales agree to________________?

16 / 50

Resistance of an ideal insulator is __________________?

17 / 50

Which one of the following material is most suitable for making core of an electromagnet ?

18 / 50

Coercive force is the force which opposes ____________________?

19 / 50

Linear momentum of a photon is_______________?

20 / 50

The periodic alternation of sound between maximum and minimum loudness are called___________________?

21 / 50

Diffraction effect is____________________?

22 / 50

If A=B, which of the following is not correct ?

23 / 50

In the electron microscope, electric & magnetic fields are used as_______________?

24 / 50

Standard condition STP refer to a gas at ___________________?

25 / 50

The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?

26 / 50

Ground state energy of the 4th orbit in a H-atom is_____________?

27 / 50

According to Pascals law the pressure of gas in a vessel is_____________?

28 / 50

An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10? resistor. The peak current is then ?

29 / 50

The physics of moving charge particles is known as__________?

30 / 50

Which one is true for internal energy ?

31 / 50

If n number of the photon is striking on a metal surface then total momentum exerted is_______________?

32 / 50

Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________________?

33 / 50

The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?

34 / 50

The rectangular coordinate system is also called______________?

35 / 50

A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is______________?

36 / 50

In a half-wave rectifier the r.m.s. value of the A.? C. component of the wave is________________?

37 / 50

The energy of SHM is maximum at_______________?

38 / 50

The value of critical angle for glass is_______________?

39 / 50

The effect of the decrease in pressure with the increase of the speed of the fluid in a horizontal pipe is known as______________?

40 / 50

Which one of the following radiations has the strongest photon?

41 / 50

Electrical resonance is observed in_______________?

42 / 50

An alternating current or voltage_____________________?

43 / 50

The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?

44 / 50

When velocity time graph is a straight line parallel to time axis then__________________?

45 / 50

A light ray traveling form rarer to denser medium suffers a phase change of__________________?

46 / 50

If a current carrying solenoid is suspended freely it will__________________?

47 / 50

The planet nearest to the earth is______________?

48 / 50

When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?

49 / 50

A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?

50 / 50

The unit of radioactivity curie is equal to________________?

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