Question
According to the United Nations' World Economic
Situation and Prospects Report, 2019, the Indian economy is expected to expand by ______in 2020.Solution
The correct answer is C
The refractive indices of quartz crystal for right handed and left handed circularly polarized light of wavelength 762.9 nm are 1.5391 and 1.5392 respe...
A toroid has a core (non-ferromagnetic) of inner radius 23 cm and outer radius 28 cm, around which 4000 turns of a wire are wound. If the current in th...
Which of the following statement is correct?
I. Friction is caused by the irregularities on the two surfaces in contact
II. Friction is a necessary evil
A light ray enters a glass slab from air at 60° incidence. If refractive index of glass is √3, what is angle of refraction?
An object of mass ‘m’ be made to fall freely from a height ‘h’. At the start the potential energy is _____ and kinetic energy is ______.
...A pond of water appears less deep due to –
If radius of earth is R then the height ‘h’ at which the value of ‘g’ becomes one-fourth is-
A sound with a single frequency is called a:
Two cars A and B are running at velocities of 60km per hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both ar...
A sudden drop in barometric pressure indicates which of the following?
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