List of top Physics Questions on Modern Physics asked in GUJCET

If an object moves with a velocity of 1 km/s and has a mass of 0.033 kg, calculate the de Broglie wavelength of the object.
The angle \( \phi \) is the angle of elevation from the horizontal to the object. The angle of elevation of the object from the point of observation is \( 1^\circ \). The horizontal distance between the object and the observer is given as \( d \). What is the expression for the distance in terms of \( \phi \)?
The energy of a photon is \( 6.63 \times 10^{-34} \, \text{Js} \). Calculate the frequency of the photon in the visible light spectrum.
The energy of a photon is 13.6 eV. Calculate the wavelength of the photon if the energy is \( 5.3 \times 10^{-11} \, \text{m} \).
A light wave with a frequency of \( 6 \times 10^{14} \, \text{Hz} \) strikes a surface, and the incident power is \( 4 \times 10^{-3} \, \text{W} \). Calculate the energy of each photon.