Engineering Questions — Physics

Q.29. The velocity(v) versus time (t) plot of a particle is shown in the figure, for a time interval of 40s. The total distance travelled by the particle and the average velocity during this period ar

Q.45. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A diode under reverse-biased condition provides very small current which is nea

Q.50. A diatomic gas () does 100 J of work when it is expanded isobarically. Then the heat given to the gas .......... J.

Q.30. A solid sphere of mass M and radius R is divided into two unequal parts. The smaller part having mass M/8 is converted into a sphere of radius r and the larger part is converted into a circular

Q.42. For a certain metal, when monochromatic light of wavelength is incident, the stopping potential for photoelectrons is 3V. When the same metal is illuminated by light of wavelength , then the st

Q.30. A planet (P) is moving around the star of mass in the orbit of radius . Another planet (P) is moving around another star of mass in a orbit of radius . Ratio of time periods of revolution of P

Q.33. A slit of width a is illuminated by light of wavelength . The linear separation between and minima in the diffraction pattern produced on a screen placed at a distance D from the slit system i

Q.28. A mass of 1 kg kept in a inclined plane with 30° inclination with respect to horizontal plane and it is at rest initially. Then the whole assembly is moved up with constant velocity of 4 m/s. Th

Q.26. Match List-I with List-II. List-I List-II (A) Meter (L) I. (B) Second (S) II. (C) Kilogram (M) III. (D) Kelvin (K) IV. where h (Planck's constant), G (gravitational constant) and c (speed of

Q.27. The potential energy of a particle changes with distance from a fixed origin as where and are constant with appropriate dimensions. The dimension of are ________.

Q.39. A current carrying circular loop of radius 2 cm with unit normal \hat{n} = \frac{\hat{k}+\hat{i}}{\sqrt{2}} is placed in a magnetic field, B=B₀(3i+2k). If B₀ = 4 × 10⁻³ T and current I=100\sqrt{

Q.39. A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0T. The magnetic intensity in SI units is . The value of is _

Q.32. The graph shows variation of stopping potential with the frequency of the incident radiation for three photosensitive metals , , and . Which metal will give out electrons with greater kinetic

Q.33. A liquid of density 600 kg/m³ flowing steadily in a tube of varying cross-section. The cross-section at a point A is 1.0 cm² and that at B is 20 mm². Both the points A and B are in same horizont

Q.37. From the circuit given below, the capacitance between terminals A and B shown in the circuit is __________ . (take and .)

Q.49. The stored charge in the capacitor in steady state of the following circuit is μC. [Figure: Circuit diagram]

Q.48. A particle having electric charge C and mass kg is accelerated by applying an electric potential of 1.21 V. Wavelength of the matter wave associated with the particle is m. The value of is .

Q.50. A certain gas is isothermally compressed to rd of its initial volume ( litre) by applying required pressure. If the bulk modulus of the gas is N/m, the magnitude of work done on the gas is ____

Q.47. Some distance star is to be observed by some telescope of diameter of objective lens a, at an angular resolution of 3.0 × 10⁻⁷ radian. If the wavelength of light from the star reaching the teles

Q.48. Two identical small bar magnets each of dipole moment J/T are placed at a center to center separation of 10 cm, with their axes perpendicular to each other as shown in figure. The value of magn