Physics Nios plus two I Welcome to your Physics Nios plus two I Total Questions: 50 Name Mobile No: 1. Which of the following is a good moderator Helium Cadmium Ordinary water Graphite None Hint 2. The work function for photoelectric effect Depends upon the frequency of incident light Is same for all metal None of the above Is different for different metal None Hint 3. Voltage feedback in feedback amplifier is proportional to Square of output voltage Square of grid voltage Grid voltage Output voltage None Hint 4. The phenomenon of scattering of light by the colloidal particle is known as Newton’s ring Spectral effect Tyndal effect Raman effect None Hint 5. Radioactive substance does not emit Gamma rays Neutrons Alpha rays Beta rays None Hint 6. The Value of dielectric constant or relative permittivity Ɛr=1 Ɛr>1 Ɛr all the above None Hint 7. Which of the following are known as universal gates? XOR & OR NAND & NOR AND & OR EX-NOR & XOR None Hint 8. The Lithium atom has 3 electrons. The third electron will be in K -shell N –shell L-shell M -shell None Hint 9. The velocity of the photoelectrons depends upon None of the above Frequency of photon only Intensity and frequency of the incident photon Intensity of the incident photon None Hint 10. Photo electric effect predict that light is made of Photons Electrons Neutrons All the three mentioned in A, B, C None Hint 11. Colour of sky appears blue its due to As extent of scattering of blue light is more it enters our eyes The size of fine particle in atmosphere is almost equal to wavelength of blue colour Shorter wavelength of blue colour All of these None Hint 12. A tuning fork of unknown frequency gives 5 beats per second with another tunning of 500 Hz. Frequency of unknown fork in Hz 495,500 5 490,510 495,505 500,505 None Hint 13. The half-life of a radioactive elements depend on Quantity of radioactive element Temperature Pressure Nature of element None Hint 14. Dielectric constant for a metal is infinite 10 1 zero None Hint 15. If L and R represents inductance and resistance respectively, then dimension of L/R will be None of the above LT T -1 L None Hint 16. The magnetic field near a current carrying conductor is given by Lenz’ law Kirchoff’s law Biot-savart’s law Coulomb’s law None Hint 17. The saturation current in a diode can be increased by Decreasing cathode temperature Raising plate potential Lowering plate potential Increasing cathode temperature None Hint 18. The Helium atom does not contain Two neutrons Six nucleon Two proton Two electron None Hint 19. The capacitance of a capacitor will decrease if we introduce a slab of: copper None of these aluminium zinc None Hint 20. Nuclear energy is released in fission because binding energy per nucleon is ? None of the above Same for fission fragment and nucleus Greater for fission fragment than for parent nucleus Smaller for fission fragment than for parent nucleus None Hint 21. The colour which is scattered most in atmosphere is Green Yellow Blue Red None Hint 22. When a capacitor is being charged the charged current Incomplete data Constant Increase Decrease None Hint 23. Which colour will be observed by a astronaut travelling in space Blue Green Indico Black None Hint 24. A magnetic field can be produced by A changing electric field Both of these A moving charge None of these None Hint 25. According to Bohr’s model of Hydrogen atom The linear momentum of the electron is quantized The linear velocity of the electron is quantized. The angular velocity of the electron is quantized The angular momentum of the electron is quantized None Hint 26. The interference of two light wave is constructive if Two waves are in opposite phase Two waves are perpendicular to each other Two waves are obtained from two different sources Two waves are in same phase None Hint 27. Does pressure depend on the shape of vessel No None of the above Yes May be None Hint 28. Field inside a solenoid is Directly proportional to its length Inversely proportional to total number of turns Inversely proportional to current Directly proportional to current None Hint 29. Fission of a nucleus is achieved by bombarding it with Electrons Protons X-ray Neutrons None Hint 30. A test charge is moved from lower potential point to a higher potential point. The potential energy of test charge will increase remain the same decrease become zero None Hint 31. Dimension of coefficient of viscosity MLT-1 MLT-2 ML-1T -1 None Hint 32. If charge q is taken positive than direction of electric field E is none of the above no changes away from charge Toward charge None Hint 33. Colours of thin films result from Absorption of light Interference of light Scattering of light Dispersion of light None Hint 34. For rectifying action, we use Transformer Choke Diode Condenser None Hint 35. Which of the following parameters dose not characterize the thermodynamic state of matter? work Temperature pressure volume None Hint 36. The temperatures of inside and outside of a refrigerator are 273 K and 303 K respectively. Assuming, that the refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be nearly: 20 J 50 J 10 J 30 J None Hint 37. In parallel combination the current passing through each resistor is low Zero Different Same None Hint 38. In Zener diode, the Zener breakdown voltage takes place at Above 6 v All of the above Below 6 V At 6 v None Hint 39. Ohm’s law is not applicable to High current Dc circuit Small resistance Semiconductor None Hint 40. SI unit of permittivity of free space C 2N -1m-2 C 2N -2m-2 C 2N -1m-1 C 1N -1m-2 None Hint 41. Interference of two light waves can be observed with the help of a Michelson experiment Photometer Spectrometer Prism None Hint 42. Rutherford in his experiment bombarded thin metallic foils by α-Particles proton Electron neutron None Hint 43. Resistance are connected in end to end in ? Random combination Parallel combination Circular combination Series combination None Hint 44. Which of the following statement is true Radioactivity is a spontaneous process Radioactivity is a statistical process Radioactive elements cannot be produced in the laboratory Radioactivity is a neutral characteristic of some element None Hint 45. Transverse wave can be transmitted in surface of liquid a&b gases solid None Hint 46. During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio Cp/Cv for the gas is 2 4/3 3/2 5/3 None Hint 47. Can a diode valve be used as an oscillator No Yes None of the above Some times with another diode None Hint 48. The point where amplitude is maximum but the strain is minimum called none of the above successive node antinodes nodes None Hint 49. In a transformer the energy losses result from Flux leakage from the core. Eddy current losses in form of heating of iron core - Eddy current loss. Magnetization heating of the core during repeated reversal of magnetization - hysteresis loss. Resistive heating in copper coils - cooper loss, None Hint 50. Dimension of Surface Tension is M -1T -2 MT2 MT-1 MT-2 None Hint Time's up Share: admin Previous post Test 1 May 26, 2025 Next post Test 2 May 27, 2025
