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Physics Quiz 8

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Physics Quiz 8

1 / 50

The minimum wavelength of X-rays can further be reduced by _______________?

2 / 50

Reciprocal of resistivity is called__________________?

3 / 50

The equation of continuity is obtained by applying in the law of conservation of_____________?

4 / 50

If the volume of a gas is held constant and we increase its temperature then_______________?

5 / 50

The blood flow is _______________ flow at systolic pressure?

6 / 50

In which process entropy remains constant________________?

7 / 50

In optic fiber transmission the repeater are separated through a distance of __________ km in newer system?

8 / 50

The critical speed of an artificial satellite is_______________?

9 / 50

The unit of coefficient of linear expansion or volume expansion is__________?

10 / 50

The velocity of sound in air would become double than its velocity at 0?C at temperature________________?

11 / 50

X-rays are electromagnetic waves like________________?

12 / 50

Electrical energy is converted to heat at the rate of___________________?

13 / 50

The characteristic X-rays spectrum is due to_____________?

14 / 50

Light reaches the earth form sun in nearly____________________?

15 / 50

Venturi meter is used to measure_________________?

16 / 50

Mass defect per nucleon is ___________________?

17 / 50

Which one of the following has the largest energy content ?

18 / 50

In an electron microscope, we use energetic particles because of______________?

19 / 50

In optic fiber transmission system _____________ are used regenerate the dim light signal?

20 / 50

The velocity of a particle of mass m of de-Broglie wavelength ? is______________?

21 / 50

Normal human body temperature 98.6?F corresponds to______________?

22 / 50

At which angle the range of the projectile is maximum____________________?

23 / 50

Maximum number of rectangular components are_____________?

24 / 50

The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

25 / 50

Identify the correct statement about minority carriers_____________?

26 / 50

The dot product of force and velocity is__________________?

27 / 50

Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?

28 / 50

Ideal fluid is_______________?

29 / 50

The escape velocity form the earth surface in km S-1 is____________________?

30 / 50

For which position maximum blood pressure in the body have the smallest value ?

31 / 50

The minimum distance between an object and its real image in a convex lens is_____________?

32 / 50

An alternating current is represented by the equation I = I?sin?t which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?

33 / 50

Which one of the following is not an electromechanical instrument ?

34 / 50

Michelson devised the formula to calculate the speed of light_______________?

35 / 50

Dioptre power of an concave lens of 10 cm focal length is_______________?

36 / 50

In the transistor schematic symbol, the arrow______________?

37 / 50

3rd law of motion explains______________________?

38 / 50

Laminar flow usually occurs at speeds_____________?

39 / 50

The relation between horse power and watt is_________________?

40 / 50

In the following figure, the terminal potential is ___________________ ?

41 / 50

Random errors can be reduced by_______________?

42 / 50

Which is not optically active ?

43 / 50

A uniform steel wire of length 4m and area of cross-section 3?10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2?1011 Nm-2 the energy stored in the wire is___________________?

44 / 50

The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?

45 / 50

Which one does not work according to resonance ?

46 / 50

Circuit which gives continuously varying potential is called _______________________?

47 / 50

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

48 / 50

Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?

49 / 50

The SI unit of Heat is________?

50 / 50

When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?

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