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