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Physics Quiz 16

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Physics Quiz 16

1 / 50

If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?

2 / 50

Electrical energy is measured in___________________?

3 / 50

In hydrogen spectrum which one of the following series lies in the ultraviolet region ?

4 / 50

A digit zero in a measurement__________________?

5 / 50

The bulk properties of materials such as their mode of fracture can be related to their____________________?

6 / 50

A force applied on a body through the string is called_________?

7 / 50

Work done by variable force is determine by dividing____________________?

8 / 50

In obtaining an X-ray photograph of our hand we use the principle of______________?

9 / 50

The uncertainty in a measurement may occur due to_______________?

10 / 50

An A.C series circuit containing 4? resistance and 3? inductive reactance. The impedance of the circuit is______________?

11 / 50

The fission chain reaction in a nuclear reactor can be controlled by introducing _______________?

12 / 50

The value of resistivity for insulator is of the order of____________?

13 / 50

How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit) ?

14 / 50

Light on passing through a Polaroid is ___________________?

15 / 50

Blood vessels are______________?

16 / 50

Electrons_________________?

17 / 50

Which one of the following radiations possesses maximum velocity ?

18 / 50

The velocity of an oscillating charge as it moves to and fro along a wire is always_____________?

19 / 50

The speed of light will be minimum while passing through ?

20 / 50

A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?

21 / 50

When we excite some atoms by heat collision or electrical discharge they will________________?

22 / 50

A ferromagnet will become fully magnetized at_________________?

23 / 50

An inductive coil has a resistance of 100?. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45?. What is the inductance of the coil ?

24 / 50

T.V sets and microwave ovens emit ___________________?

25 / 50

The current through a metallic conductor is due to the motion of _________________?

26 / 50

Which one of the following is not vector quantity _______?

27 / 50

During an encounter with an atom alpha particle knocks out ______________?

28 / 50

An electromagnetic wave consists of _____________________?

29 / 50

________________ cells converts solar energy into electrical energy?

30 / 50

Wave-like characteristic of electron is demonstrated by______________?

31 / 50

Rutherford in his atomic model could not explain behavior of ___________ ?

32 / 50

The net charge on n-type material is____________________?

33 / 50

To reduce the uncertainty in the timing experiment______________?

34 / 50

A mass spectrograph (spectrometer) sorts out____________?

35 / 50

The angular speed of seconds hand of a watch in rads-1 is______________?

36 / 50

The drag force is given by_________________?

37 / 50

A vector can be multiplied by a number. The number may be_______________?

38 / 50

A cup of milk is placed in a microwave oven. Tell which statements is false. (1) Milk will be heated up only. (2) Cup will remain cool. (3) Both cup and mild will get hot ?

39 / 50

Velocity of fluid increases where the pressure is________________?

40 / 50

The beats frequency (sensible) for a human car is _____________________?

41 / 50

On loading the prong of a tuning form with wax its frequency____________________?

42 / 50

Dimensional analysis is helpful for__________________?

43 / 50

A man is in a car is moving with velocity of 36km/hr. His speed with repect to the car is ____________________?

44 / 50

Boyles law helds for ideal gases in________________?

45 / 50

Area under velocity time graph represent_____________________?

46 / 50

Pair production takes place in the vicinity of a heavy nucleus so that_____________?

47 / 50

Which one of the following is not a radioactive element ?

48 / 50

The sensitivity of a galvanometer is given by__________________?

49 / 50

Radioactive decay obeys which one of the following law ?

50 / 50

At constant temperature the graph between V and 1/P is_____________?

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