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Physics Quiz 13

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Physics Quiz 13

1 / 50

The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be ?

2 / 50

Name the branch of science which deals with the study of sound and sound waves?

3 / 50

Longitudinal waves do not exhibit _____________________?

4 / 50

Which of the following properties of molecules of a gas is same for all gases at particular temperature ?

5 / 50

The total energy of a body executing S.H.M is directly proportional to________________?

6 / 50

An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the length of meter stick is________________?

7 / 50

Null vector is a vector which has________________?

8 / 50

Work has the dimension as that of same as that of__________________?

9 / 50

Least distance of distinct vision_____________?

10 / 50

When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is__________________?

11 / 50

How many types of units are in SI ?

12 / 50

The standard vector symbol for flux density is ____________________?

13 / 50

The performance of a refrigerator is described by________________?

14 / 50

During fusion of hydrogen into helium________________?

15 / 50

Compton effect proves the________________?

16 / 50

A galvanometer basically is an instrument used to ____________________?

17 / 50

A point where the incident parallel rays of light converge or appear to diverge after passing through a lens is called______________?

18 / 50

The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?

19 / 50

Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of_______________?

20 / 50

pure resistor circuit the voltage and current are_______________?

21 / 50

Geiger counter is suitable for _________________?

22 / 50

An ammeter measures the total current flowing through a circuit when it is connected__________________?

23 / 50

Ultrasonic have__________________?

24 / 50

In a plane polarized light _________________?

25 / 50

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

26 / 50

Proton electron neutron and a particles have same momentum. Which of them have highest K.E ?

27 / 50

A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?

28 / 50

The device used for conversion of D.? C. to A.? C. is called______________?

29 / 50

The speed of the fluid is maximum in the venturi meter at_______________?

30 / 50

In Davisson-Germer experiment the diffracted proton from crystal shows______________?

31 / 50

The number of beats produced per second is equal to____________________?

32 / 50

On a clear day at noon the solar energy reaching the earth is ____________________?

33 / 50

Depletion region of a junction is formed_____________?

34 / 50

Maximum frequency in the spectrum from X-ray tube is directly proportional to the______________?

35 / 50

When same current passes for same time through a thick and thin wire_________________?

36 / 50

When fluid is incompressible then________________?

37 / 50

The average acceleration caused by gravity per second is____________?

38 / 50

A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10 ?

39 / 50

Semi-conductors with donor atoms and free electrons belong to the type________________?

40 / 50

Which one is the best material for making connecting wires ?

41 / 50

The span of the broad jump depends upon_______________?

42 / 50

Ratio of the weight of H-atom to that of an electron is approximately______________?

43 / 50

The direction of the vector product is given by______________?

44 / 50

When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?

45 / 50

Einstein?s photoelectric equation is given by_______________?

46 / 50

If the length of the second pendulum becomes four times, then its time period will become________________?

47 / 50

If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?

48 / 50

Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains ?

49 / 50

Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

50 / 50

What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?

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