MHT-CET PCB 04 — MHT - CET STD 12 Science — Question

In an npn transistor, the collector current is 24 mA. If 80% of electrons reach collector, its base current in mA is ______.

In glycolysis,____________ ATP molecules are formed directly.

Assertion: Mammals from colder climates generally have shorter snout, ears, tail, and limbs.

Reason: This enables them to minimize loss of body heat.

Two small spherical metal balls, having equal masses, are made from materials of densities `rho_1` and`rho_2 (rho_1 = 8rho_2)` and have radii of 1 mm and 2 mm, respectively, they are made to fall vertically (from rest) in a viscous medium whose coefficient of viscosity equals `eta` and whose density is `0.1rho_2` The ratio of their terminal velocities would be, ____________.

A metal sphere 10.01 cm in diameter is placed on a brass ring of internal diameter 10 cm and at the same temperature of 12° C. The temperature up to which they should be heated together so that the metal sphere just passes through the ring is `[alpha_"metal"= 12 xx 10^-6//°"C" and alpha_"brass" =18 xx 10^-6//°"C"]` ____________.

The capillaries of the glomerulus reunite to form _______ which leaves the Bowman's capsule.

______ interaction is the biological interaction between organisms of same population.

The following identifies the properties observed in transgenic fish.