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