211 .If the earth were to spin faster, acceleration due to gravity at the poles:
212 .The process of combining strings is known as
213 .When a charged particle entres a uniform magnetic field its kinetic energy
214 .For an astronaut in a space ship, the sky appears
215 .Earth Summit was held in -
216 .Light year is a measurement of-
217 .How does time period (T) of aseconds pendulum very with length (l) ?
218 .An instrument used to measure humidity is
219 .Why is sound heard with more intensity through CO2 than through the air?
220 .This strain of rice was one of the first High Yielding Varieties of seeds developed in the world. Name it
221 .Ice is packed in saw dust because
222 .In which of the following sequences are the electromagnetic radiations in decreasing order of wave lengths
223 .What is the principle by which a cooling system (Radiator) in a motor car works?
224 .Which of the following is not the cause of low conductivity of electrolyte
225 .If the pressure in closed vessel is reduced by drawing out some gas, the mean free path of the gas molecules will