List of practice Questions

An electromagnetic radiation of frequency n, wavelength $\lambda $, travelling with velocity v in air, enters a glass slab of refractive index \mu . The frequency, wavelength and velocity of light in the glass slab will be respectively
High milk yielding varieties of cows are obtained by
Tesla is the unit of
The ion which is isoelectronic with CO is
Two parallel wires in free space are 10 cm apart and each carries a current of 10 A in the same direction. The force exerted by one wire on the other, per metre length is
The electronic configuration of gadolinium (at. no. = 64) is
The CO2 content by volume, in the atmospheric air is about
The most common indicator organism that represents polluted water is
Standing waves are produced in $10\, m$ long stretched string. If the string vibrates in $5$ segments and wave velocity is $20\,m/s$, its frequency is
The Nissl's granules of nerves cell are made up of
When hydrogen atom is in its first excited level, its radius, is
The intermetallic compound $LiAg$ crystallises in cubic lattice in which both lithium and silver have coordination number of eight. The crystal class is
The molecule which does not exhibit dipole moment is
The most stable configuration of n-butane will be
Bryophytes can be separated from algae, because they
Which of the following techniques is most suitable for purification of cyclohexanone from a mixture containing benzoic acid, isoamyl alcohol, cyclohexane and cyclohexanone?
What is common among silver fish, scorpion, crab and honey bee?
An astronomical telescope of tenfold angular magnification has a length of 44 cm. The focal length of the objective is
Carbon-14 dating method is based on the fact that
The ability of anion to bring about coagulation of a given colloid depends upon
The structural formula of hypophosphorous acid is
Diphtheria is caused by
During adverse season, therophytes survive by
Ketones [RCOR1] where $R=R_1 =$ alkyl group, can be obtained in one step by
Identify the vector quantity among the following