2019 MHT-CET PCM SET - 03 — MHT - CET STD 12 Science — Question

A body of mass ·m' is moving along a circle of radius 'r' with linear speed 'v'. Now, to change the linear speed to `V/2` and to move it along the circle of radius '4r', required change in the centripetal force of the body is ______.

Three equal masses each of 50 g, are placed at the corners of a right angled isosceles triangle whose two equal sides are 5 cm each. The position of the centre of mass of the system is ____________.

A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude of its linear momentum, the radial force acting on the particle is ______.

Two coils P and Q are kept near each other. When no current flows through coil P and current increases in coil Q at the rate 10 A/s, the e.m.f. in coil P is 20 mV. When coil Q carries no current and current of 1.6 A flows through coil P, the magnetic flux linked with the coil Q is ____________.

Bromination of phenol, will NOT give:

Which of the following term refers to the study of genomes through analysis, sequencing and mapping of genes along with the study of their functions?

Identify the CORRECT order of steps in Polymerase Chain Reaction (PCR).

The chromatin is packed to form a solenoid structure of ______ diameter.

In biogas plant, the organic acids like acetic acid are converted to bioga by the enzymes of ____________.