JEE Physics - MCQ Practice Questions

A plane mirror is moved towards a stationary object at a speed of 5 m/s. The speed at which the image approaches the object is:

Light of wavelength 500 nm in vacuum enters a medium of refractive index 1.5. The wavelength in the medium is:

A concave mirror of focal length 20 cm forms a real, inverted, and magnified image. The object must be placed:

Critical angle for a medium is 45°. Its refractive index is:

When white light passes through a prism, violet light deviates more than red light because:

A lens of power -5 diopters is used to correct vision. This lens is:

The resolving power of a microscope increases when:

The rest mass energy of an electron is approximately:

The de Broglie wavelength of a particle is given by:

The binding energy per nucleon is maximum for:

A radioactive nucleus has half-life of 10 days. After 30 days, the fraction of original nuclei remaining is:

Compton scattering demonstrates:

The energy of a photon in terms of wavelength is:

In the Bohr model, the radius of nth orbit in a hydrogen atom is proportional to:

The ratio of specific charge (e/m) for an α-particle to that of a proton is:

A photon of energy 13.6 eV ionizes a hydrogen atom in its ground state. What is the kinetic energy of the ejected electron?

Which of the following correctly represents the order of penetrating power of nuclear radiations?

The binding energy per nucleon of ²⁵⁶Fe (Z=26) is 8.8 MeV. The total binding energy of this nucleus is approximately:

A nucleus undergoes beta-minus decay. Which of the following is correct?

The angular momentum of an electron in the Bohr model is quantized as: