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