Recycled energy is mainly _______.

Reflection and absorption by the atmosphere prevent some ____ from reaching earth's surface.

Regarding size radio waves have the _________ wavelength compared to the other types of ems.

Organisms that are poikilothermic _______.

The blueness of the daytime sky is due mostly to light _______.

Polycythemia results in _______.

An object is at a certain height above the ground. If the object's mass is 15 kg and its potential energy is 540 J. then at what height the object is with respect to the ground. (Consider the value of g =10 m/sz.)

Two parallel wires are placed at a distance of 10 cm apart. The length of each of these wires is 5 m and they carry equal currents along the same direction. Find the current through the conductors, if they experience a mutually attractive force of 4.9 x104 N.

Which of the following options is the correct frequency band for FM broadcast in India?

Consider that a sample of 238U92 is undergoing o—decay. Its half-life is 4.5 x109 years. Find the activity 0f 1 g sample of 238U92.

What is the approximate energy associated with big bang?