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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