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Physics Quiz 4

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Physics Quiz 4

1 / 50

The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________?

2 / 50

A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is____________________?

3 / 50

Which one of the following is not a donor impurity ?

4 / 50

When X-rays are passed through successive aluminum sheets what happens to their thickness ?

5 / 50

The mass attached to a spring executes ?

6 / 50

An alpha particle is emitted from 88Ra226. What is the mass and atomic number of the daughter nucleus ?

7 / 50

Value of permeability of free space in SI units is___________________?

8 / 50

When body is in motion, ____________ always changes?

9 / 50

A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________?

10 / 50

When collision between the bodies in a system is inelastic in nature then for system ____________________?

11 / 50

In Compton scattering, the change in wavelength is maxed if_______________?

12 / 50

Magnifying power of simple microscope______________?

13 / 50

Alpha particle ionizes an atom_________________?

14 / 50

Triple point of water is_____________________?

15 / 50

Which one of the following materials is useful for making bulb filaments ?

16 / 50

The efficiency of the Carnot engine working between 150?C and 50?C is__________?

17 / 50

In which process all the heat supplied is converted into work done ?

18 / 50

A choke is used as a resistance in_________________?

19 / 50

A point source of light placed in a homogeneous medium gives rise to ___________________?

20 / 50

The radiations emitted form hydrogen filled discharge tube show____________?

21 / 50

2nd law of motion gives the definition of________________?

22 / 50

The charge on neutron is_______________?

23 / 50

When the body moves with terminal velocity the acceleration in the body become_____________?

24 / 50

In case of a simple pendulum, the cause of damping is__________________?

25 / 50

A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?

26 / 50

For chain reaction to build up the size of the radioactive target should be______________?

27 / 50

A fuse is placed in series with the circuit to protect against__________________?

28 / 50

Name the SI unit having the symbol cd?

29 / 50

Which one is the highest power multiple ?

30 / 50

Hydrogen atom does not emit X-rays because _________________?

31 / 50

For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?

32 / 50

The number of significant figures in 5.400 is________________?

33 / 50

Petrol engine is a________________?

34 / 50

Non-inverting amplifier circuits have____________?

35 / 50

The cross product of two vectors is a negative vector when______________?

36 / 50

The rotational K.E of the hoop is equal to the______________?

37 / 50

Two vectors A and B are making angle ? with each other. The scalar projection of vector B on vector A is written as____________?

38 / 50

The existence of Ether wind was experimentally rejected by__________________?

39 / 50

The dimension of force is__________________?

40 / 50

One radian is equal to______________?

41 / 50

Sphygmomanometers measures blood pressure ?

42 / 50

Who were the pioneers of Physics?

43 / 50

In multiplication and division of measurement______________?

44 / 50

The waves that require a material medium for their propagation are called__________________?

45 / 50

In an electronic transition atom cannot emit______________?

46 / 50

When arrow is released form its bow, its energy is transformed from _____________________?

47 / 50

Galvanometer is a very sensitive device with______________________?

48 / 50

ML-1 T-2 is the dimension of_______________?

49 / 50

Numerical value of Boltzmanns constant is______________?

50 / 50

Crystals of a material can behave as_________________?

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