COMEDK 2021

Two spring of force constant \(k_1\) and \(k_2\) are configured as the figure given below

The angular frequency of this configuration is

Which of the following statement is incorrect?

Which of the following technique is not used for measuring small time intervals?

The relative errors in the measurement of two lengths 1.02 cm \(\pm\) 0.01 cm and 9.89 cm \(\pm\) 0.01 cm is

An unpolarised beam of intensity I\(_0\) is incident on a pair of nicols making an angle of 60\(^\circ\) with each other. The intensity of light emerging from the pair is

In Young's double slit experiment with sodium vapour lamp of wavelength 589 nm and slit 0.589 mm apart, the half angular width of the central maxima is

The displacement of a wave is given by
\(y = 20\cos (\omega t + 4z)\)
The amplitude of the given wave is

If frequencies are \((\nu-1)\) and \((\nu+2)\), then find the value of beats.

Two masses of 1g and 9g are moving with equal kinetic energy. The ratio of magnitude of their momentum is

For motion under central forces, which quantity will be conserved?