List of top Questions asked in SRMJEEE

The most widely used rectifier is
Connecting a lead from the negative to the positive of a battery will produce
What is the net charge if a certain semiconductor losses 4 valence electrons?
When boron \(_{5}B^{10}\) is bombarded by neutron, alpha particles are emitted. The resulting nucleus has the mass number.
A piece of an ancient wooden boat shows an activity of C14 of 3.9 disintegrations per minute per gm of carbon. Estimate the age of the boat, if the half life of C14 is 5.568 years. Assume that the activity of fresh carbon -14 is 15.6 dpm.gm
X-rays of wavelength 1.14 A in the first order reflection from a crystal, were reflected at an angle of 30o.
The inter planar distance in the crystal is (Sin 30ois 0.5)
Which of the following transitions in hydrogen atoms emit photons of highest frequency?
The unit of relative permittivity is
If ionising energy of H atom is 13.6eV, then the second ionising energy of He should be
Weak nuclear forces act on
A pair of coil has a mutual inductance of 2 H, if the current in the primary changes from 10 A to zero in 0.1 S, the induced emf in the secondary will be
The ratio of the radii of the nuclei \(_{13}Al^{27}\) and \(_{52}Te^{125}\) is approximately
Radiation of two photons having energies twice and five times the work function of a metal are incident successively on the metal surface.Find out the ratio of maximum velocity of photo electrons emitted in the two cases.
The frequency of the charged particle circular at right angles to a uniform magnetic field does not depend upon the
An electron in Bohr's hydrogen atom has an energy of -3.4 eV. The angular momentum of the electron is:
How many orders will be visible if the wavelength of the incident radiation is 5000 and the number of lines on the grating is 2620 in one inch?
Huygen's principle of secondary waves is used to
The resolution limit of eye is 60 s. At a distance of X km from the eye two persons stand with lateral separation of 3 m. For the two persons to be just resolved by eye, X should be
Convex lens always gives a real image if the object is situated beyond ______________
If the door of a refrigerator in a room is kept open, the temperature of room will be
If the rate at which the radiation is conuited by a black body at 0oC is 2 watt, the rate of emission at 273oC will be
What determines the charge that flows through a circuit due to the induced emf?
A stone is dropped into a lake by a person from a 500m high tower. He would hear the sound after approximately
A domestic refrigerator is loaded with food and the door closed. During a certain period the machine consumes 1 KWh of energy and the internal energy of the system drops by 5000KJ. Find the net heat transfer for the system.
If the values of \(R=\frac{2}{5}\) Cv for a gas, then the atomicity of the gas will be