Physics Quiz 12

1 / 50

**One torr is equal to_________________?**

2 / 50

**When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?**

3 / 50

**Which of the following pairs does not have identical dimensions ?**

4 / 50

**The rectangular coordinate system is also called______________?**

5 / 50

**The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?**

6 / 50

**In the electron microscope, electric & magnetic fields are used as_______________?**

7 / 50

**An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10? resistor. The peak current is then ?**

8 / 50

**Ground state energy of the 4th orbit in a H-atom is_____________?**

9 / 50

**The value of critical angle for glass is_______________?**

10 / 50

**In forward bias the width of potential barrier_____________?**

11 / 50

**The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?**

12 / 50

**Electrical resonance is observed in_______________?**

13 / 50

**Which instrument is suitable to measure the internal diameter of a test tube?**

14 / 50

**The unit of radioactivity curie is equal to________________?**

15 / 50

**Which one of the following material is most suitable for making core of an electromagnet ?**

16 / 50

**The Fahrenheit and centigrade scales agree to________________?**

17 / 50

**Coercive force is the force which opposes ____________________?**

18 / 50

**The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?**

19 / 50

**Which one of the following radiations has the strongest photon?**

20 / 50

**Which one of the following possesses greater penetration power ?**

21 / 50

**If n number of the photon is striking on a metal surface then total momentum exerted is_______________?**

22 / 50

**If A=B, which of the following is not correct ?**

23 / 50

**The physics of moving charge particles is known as__________?**

24 / 50

**Linear momentum of a photon is_______________?**

25 / 50

**Standard condition STP refer to a gas at ___________________?**

26 / 50

**Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________________?**

27 / 50

**An alternating current or voltage_____________________?**

28 / 50

**The range of the projectile at 30 deg and 60 deg are__________________?**

29 / 50

**Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?**

30 / 50

**If a current carrying solenoid is suspended freely it will__________________?**

31 / 50

**A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is______________?**

32 / 50

**According to Pascals law the pressure of gas in a vessel is_____________?**

33 / 50

**In a half-wave rectifier the r.m.s. value of the A.? C. component of the wave is________________?**

34 / 50

**For normal adjustment, length of astronomical telescope is______________?**

35 / 50

**When velocity time graph is a straight line parallel to time axis then__________________?**

36 / 50

**The energy of SHM is maximum at_______________?**

37 / 50

**A light ray traveling form rarer to denser medium suffers a phase change of__________________?**

38 / 50

**The effect of the decrease in pressure with the increase of the speed of the fluid in a horizontal pipe is known as______________?**

39 / 50

**An alpha particle in a single encounter__________________?**

40 / 50

**Resistance of an ideal insulator is __________________?**

41 / 50

**I ^. (j^ x k^) is equal to______________?**

42 / 50

**The acceleration of a projection on the diameter for a particle moving along a circle is_______________?**

43 / 50

**Diffraction effect is____________________?**

44 / 50

**The planet nearest to the earth is______________?**

45 / 50

**The periodic alternation of sound between maximum and minimum loudness are called___________________?**

46 / 50

**Which one is true for internal energy ?**

47 / 50

**The rectangular voltage is an example of____________________?**

48 / 50

**Motorcycle safety helmet extends the time of collision hence decreasing the________________?**

49 / 50

**A three-dimensional image is obtained by________________?**

50 / 50

**A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?**

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