Radiation Exposure is measured by

One Astronomical unit is

Frequency of our household alternating current is

Convention takes place with the change in which of the following physical properties?

Impression of an eye image persist on the retina of human eye for about

Ultrasound equipments used for investigating medical problems work at frequency

The density of water at 4⁰C is

The relation between calorie and joule is 1 calorie =

In parallel connection ……… is constant.

The nucleus of an atom consists of

The number of moles of solute present in 1 kg of a solvent is called its

The most electronegative element among the following is

The most commonly used bleaching agent is

The heat required to raise the temperature of body by 1 K is called

The most abundant rare gas in the atmosphere is

The main use of salt in the diet is to

The monomer of polythene is

The mass of one Avogadro number of helium atom is

The gas used in the manufacture of Vanaspati from vegetable oil is

Mycology is the study of

Largest number of Eucalyptus species is found in

What is the main function of RNA?

The major part of solar radiation is harvested by the

The forest which is not affected by biological factors.

First human heart transplant operation conducted by Dr. Christian Bernard on Louis Washkansky, was conducted in

Excessive secretion from the pituitary gland in the children results in

The credit of developing the polio vaccine goes to

What is the normal red blood count per cubic mm?

Deforestation in the uplands may cause pollution in rivers through