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