Physics Quiz 15

1 / 50

**An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?**

2 / 50

**UV radiation can be produced by______________?**

3 / 50

**When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?**

4 / 50

**Why Ballistic missile fails in some circumstances of precision ?**

5 / 50

**The carburettor of a car is an application of_______________?**

6 / 50

**The penetration power of alpha particle as compared to beta particle is_______________?**

7 / 50

**A capacitor of capacitance 30?F is charged by a constant current of 10m? A. If initially, the capacitor was uncharged what is the time taken for the potential difference across the capacitor to reach 300V ?**

8 / 50

**When a force is applied at one end of an elastic wire it produces at strain ? in the wire. If y is the youngs modulus of the material of the wire the amount of energy stored per unit volume of the wire is given by_________________?**

9 / 50

**If a glass plate is inserted in between the plate of a capacitor in series with a lighted bulb the brightness of the bulb________________?**

10 / 50

**The unit of force is _________ and its symbol is ______________ Which is the correct pair ?**

11 / 50

**Beta particles ionize an atom_________________?**

12 / 50

**Final image produced by a compound microscope is_____________?**

13 / 50

**Radioactive materials can be identified by measuring their_______________?**

14 / 50

**In S.H.M. the velocity of a particle is maximum at________________?**

15 / 50

**Which branch of science plays an important role in engineering?**

16 / 50

**If a wheel of radius r turns through an angle of 30? then the distance through which any point on its rim moves is______________?**

17 / 50

**In damped harmonic oscillation which one decreases ?**

18 / 50

**The branch of science which deals with the properties of matter and energy is called__________?**

19 / 50

**A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?**

20 / 50

**The semiconductor diode can be used as a rectifier because _______________?**

21 / 50

**When the source of sound moves away form a stationary listener then ______________ occurs?**

22 / 50

**Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?**

23 / 50

**The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is__________________?**

24 / 50

**Transuranic elements have an atomic number_______________?**

25 / 50

**Momentum depends upon__________________?**

26 / 50

**Taking off rocket can be explained by __________________?**

27 / 50

**Central spot of Newtons rings __________________?**

28 / 50

**A photon is________________?**

29 / 50

**The waveform of S.H.M. is________________?**

30 / 50

**It is possible to distinguish between transverse and longitudinal waves form the property of __________________?**

31 / 50

**If a diffraction grating is placed in the path of a light beam it reveals______________?**

32 / 50

**If velocity is doubled then__________________?**

33 / 50

**In n-p-n transistor, p works as______________?**

34 / 50

**Total number of series in hydrogen spectrum is_____________?**

35 / 50

**As the temperature of black body is raised the wavelength corresponding to maximum intensity________________?**

36 / 50

**Bracket series is obtained when all transition of electron terminate on_______________?**

37 / 50

**A sensitive galvanometer gives full-scale deflection with 100 mV. If the resistance of the galvanometer is 50? the maximum current that can flow through safely is__________________?**

38 / 50

**The sharpness of resonance is__________________?**

39 / 50

**The energy band occupied by the valence electrons is called___________________?**

40 / 50

**Slope of work time graph is equal to____________________?**

41 / 50

**Medium which sends signal from source to destination is known as ________ ?**

42 / 50

**The path of alpha particle is_______________?**

43 / 50

**Select an alternative from of uncertainly principle from the following_______________?**

44 / 50

**Metabolism is the name of a process in which energy transformation takes place within______________?**

45 / 50

**The consumption of energy by a 60 watt bulb in 2 sec is_________________?**

46 / 50

**To find the r.m.s value of an alternating current mathematically we need to have ________________?**

47 / 50

**Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are__________________?**

48 / 50

**Nuclei having the same mass number but different atomic number are____________?**

49 / 50

**In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?**

50 / 50

**In monochromatic red light a blue book will probably appear to be_________________?**

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