Q. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?

View solution

Q. In which of the following industries is mica as a raw material?

View solution

Q. Radiocarbon dating technique is used to estimate the age of

View solution

Q. Identify the vector quantity from the following

View solution

Q. Large astronomical telescopes always use as objective

View solution

Q. One should not connect a number of electrical appliances to the same power socket because

View solution

Q. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
I. Diffusion
II. Refraction
III. Internal reflection

View solution

Q. Natural radioactivity was discovered by

View solution

Q. Planets are

View solution

Q. One nanometer is equal to

View solution

Q. Mica is used in electrical appliances such as electric iron because mica is

View solution

Q. It is easier to roll a barrel full of coal tar than to pull it because

View solution

Q. Minimum number of unequal vectors which can give zero resultant are

View solution

Q. Intensity of sound has

View solution

Q. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

View solution

Q. An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

View solution

Q. Atomic bomb was first successfully developed by

View solution

Q. Atomic bomb was successfully developed in

View solution

Q. Atomic theory was developed by John Dalton in

View solution

Q. John Dalton developed the 'Atomic Theory' in

View solution