Physics Quiz 3

1 / 50

**Acceptor and donor impurities donate______________?**

2 / 50

**The co efficient of linear expansion is equal to__________?**

3 / 50

**The alternating voltage is an example of_______________?**

4 / 50

**Magnification of the astronomical telescope is_____________?**

5 / 50

**The velocity of light was determined accurately by_______________?**

6 / 50

**When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by______________?**

7 / 50

**Choose the correct statement. In the case of AC circuit ohms law holds for_______________?**

8 / 50

**Absolute uncertainty in a measurement depends upon______________?**

9 / 50

**1st law of motion gives the definition of _________________________?**

10 / 50

**On the basis of band theory of solids the semiconductors have _____________________?**

11 / 50

**In case of planets the necessary acceleration is provided by______________?**

12 / 50

**The bombardment of nitrogen with alpha particles will produce______________?**

13 / 50

**Two fog droplets have radius 2:3 their terminal velocities are_______________?**

14 / 50

**Alpha particles possess greater penetration power than that of beta particles due to its_____________?**

15 / 50

**The frequency of a circuit consisting of a capacitance C and a resistor R is________________?**

16 / 50

**If a body a mass of 2 kg is raised vertically through 2m, then the work done will be _________________?**

17 / 50

**A chimney works best if air exposed to the chimney is______________?**

18 / 50

**Antimatter consists of ______________?**

19 / 50

**SI unit of flux density is____________________?**

20 / 50

**A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?**

21 / 50

**When a body moves in a straight line then its displacement coincides with__________________?**

22 / 50

**If one or more of the neutrons emitted during fission cab be used to build up further fission then the reaction is self-sustained and is known as __________________?**

23 / 50

**The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12?. Galvanometer resistance is_____________?**

24 / 50

**Radiation produced from TV picture tube is_____________?**

25 / 50

**The branch of Physics which deals with properties of gravitational?**

26 / 50

**Sound waves do not travel in vacuum because ___________________?**

27 / 50

**The escape velocity of a body in gravitational field of earth is independent of__________________?**

28 / 50

**Work done by the force of friction is____________________?**

29 / 50

**Which branch of science plays an important role in the development of technology and engineering ?**

30 / 50

**Irregular flow of fluid is called_______________?**

31 / 50

**In vibrating cord the points where the amplitude is maximum, are called ___________________?**

32 / 50

**If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is_____________________?**

33 / 50

**The frequency of the second pendulum is________________?**

34 / 50

**How much heat does a 40 W bulb generates in one hour ?**

35 / 50

**The magnitude of the cross product is equal to the dot product between them. The angle between the two vectors is________________?**

36 / 50

**In the transistor schematic symbol, the arrow_______________?**

37 / 50

**A body in equilibrium__________________?**

38 / 50

**Laplace found that the alternate compressions and rarefactions produced in sound waves follows ________________?**

39 / 50

**The electric P.E of an electron in an orbit at a distance rn from the positive charge_____________?**

40 / 50

**Concentration of red cells in blood is about______________?**

41 / 50

**A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?**

42 / 50

**A magnetic field___________________?**

43 / 50

**According to Einstein light travels form one place to another in the form of ________________?**

44 / 50

**Thermocouples convert___________________?**

45 / 50

**SI unit of the coefficient of viscosity is___________________?**

46 / 50

**Strontium-90 is used as __________________?**

47 / 50

**The cross product i^ x j^ is equal to_______________?**

48 / 50

**Unit of power of a lens is________________?**

49 / 50

**The diameter of a lens is called________________?**

50 / 50

**The restoring force acting on the simple pendulum is given by_______________?**

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