Physics

SI unit of magnetic dipole moment is

SI unit of magnetic dipole moment is Options (a) A m⁻¹ (b) A m² (c) T m A⁻¹ (d) m…

The velocity v of waves produced in water depends on their wavelength λ, the density

The velocity v of waves produced in water depends on their wavelength λ, the density of water d and acceleration…

In the elastic collision of objects

In the elastic collision of objects Options (a) Only momentum remains constant (b) Only K.E remains constant (c) Both remain…

If a body is rolling on the surface, its total energy will be

If a body is rolling on the surface, its total energy will be Options (a)(1/2) mv² - (Gm₁m₂/R) (b) (1/2)…

A vibrating string of certain length l under a tension T resonates with a mode

A vibrating string of certain length l under a tension T resonates with a mode corresponding to the first overtone…

A string is stretched between fixed points seperated by 75 cm. It is observed

A string is stretched between fixed points seperated by 75 cm. It is observed to have resonant frequencies of 420…

In Young’s double slit interference experiment, using two coherent waves

In Young's double slit interference experiment, using two coherent waves of different amplitudes, the intensities ratio between bright and dark…

The polarising angle of glass is 57⁰. A ray of light which is incident at this angle

The polarising angle of glass is 57⁰. A ray of light which is incident at this angle will have an…

40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant

40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant volume is Options (a)…

The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is

The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is Options (a) 10 (b) 1 (c)…