MHT CET Physics Model Test 04 — MHT - CET STD 12 Science — Question

The equiconvex lens has a focal length 'f'. If the lens is cut along the line perpendicular to the principal axis and passing through the pole, what will be the focal length of any half part?

Movement of ions, atoms or molecules of solutes, liquids or gases from the region of their higher concentration to a region of their lower concentration is called ____________.

The total energy of the body executing S.H.M. is E. The kinetic energy of the body, when the displacement is half of the amplitude is ______.

The magnifying power of a telescope is high, if its objective and eyepiece have respectively ____________.

Identify the condition which does not lead to secondary succession.

When DNA is transferred from a culture of capsulated Streptococcus to a culture of non-capsulated Streptococcus, converting the latter into the former type, the process is known as ____________.

The negation of the statement 'He is poor but happy' is ______.

A voltmeter of range 3 V and resistance 200 `Omega` cannot be converted into an ammeter of rang ____________.

At a constant volume, a quantity of an ideal gas has a pressure of 700 mm Hg at 300 K. At what pressure, the temperature will be halved?

Two incident radiations having energies two times and ten times of the work function of a metal surface, produce photoelectric effect. The ratio of maximum velocities of emitted photo electrons respectively is ____________.