MHT CET 2021 20TH SEPTEMBER EVENING SHIFT

If \(\omega\) is complex cube root of unity and \((1+\omega)^7=A+B\omega\), then values of A and B are, respectively

Keeping temperature constant the pressure of 11.2 dm\(^3\) of a gas was increased from 105 kPa to 420 kPa. What is the new volume of gas?

The ratio of radii of gyration of a circular ring and circular disc of the same mass and radius, about an axis passing through their centres and perpendicular to their planes is

If \(\frac{n !}{2 !(n-2) !}\) and \(\frac{n !}{4 !(n-4) !}\) are in the ratio \(2: 1\), then \(n=\)

"Mass can neither be created nor destroyed" is the statement of

Two masses '\(m_{\mathrm{a}}\)' and '\(\mathrm{m}_{\mathrm{b}}\)' moving with velocities '\(v_{\mathrm{a}}\)' and '\(v_{\mathrm{b}}\)' opposite directions collide elastically. Alter the collision '\(m_a\)' and '\(m_b\)' move with velocities and '\(v_{\mathrm{b}}\)' and '\(v_a\)' respectively, then the ratio \(\mathrm{m_a:m_b}\) is