TIFR Physics Solutions

Hello Sir I have appeared in Tata Institute of Fundamental Research Graduate School Admissions Exam (TIFR GS). I am sure that I will clear all the Papers but I have some doubt about Physics so I want to check my Answers. Would you please provide me TIFR GS Physics Solutions?

Can you provide me previous year question paper for Physics-X of Graduate School Admissions (GS) Test conducted by TIFR (Tata Institute of Fundamental Research)?

[shikha]

The previous year question paper for Physics-X of Graduate School Admissions (GS) Test conducted by TIFR (Tata Institute of Fundamental Research) is as follows:

The separation between neighbouring absorption lines in a pure rotational spectrum of the hydrogen bromide (HBr) molecule is ʹǤʹ͵ meV. If this molecule is considered as a rigid rotor and the atomic mass number of Br is 80, the corresponding absorption line separation in deuterium bromide (DBr) molecule, in units of meV, would be
(a) 2.234 (b) 1.115 (c) 1.128 (d) 4.461

Consider a 2-D square lattice. The ratio of the kinetic energy of a free electron at a corner of the first Brillouin zone (ܧ (௖to that of an electron at the midpoint of a side face of the same zone (Em) is Ec/Em=

(a) 1/2 (b) 2 (c)v2 (d) 1

A thermally isolated container stores N2 gas at 27.24 Degree at one atmospheric pressure. Suddenly the pressure of the gas is increased to two atmospheric pressures. Assuming N2 to behave as an ideal gas, estimate the change in temperature of the gas, in Celsius degrees (C).

A beam of plane microwaves of wavelength 12 cm strikes the surface of a dielectric at 45 Degree. If the refractive index of the dielectric is 4/3, what will be the wavelength, in units of mm, of the microwaves inside the dielectric?


The energy of an electron in the ground state of the He atom is -79eV. Considering the Bohr model of the atom, what would be 10 times the first ionization potential for a He+ ion, in units of eV?

Question Paper Physics-X of GS Test TIFR (Tata Institute of Fundamental Research)