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Clear nights are colder than cloudy nights as of
If the kinetic energy of a body is increased by 9% then change in its momentum will be :
Optic fibres are used in:
The chemical substance present in bones and teeth is :
The secretory Product pectin of cell wall is chemically a
Which acid is used in rubber, textile, leather and electroplating industries ?
Which of the following is used as a moderator in nuclear reactor?
A black body can absorb radiations of;
Cloudy nights are warmer compared nights, as clouds mainly
If the magnetic flux linked with a coil varies at the rate of 1 Wb/min, the induced e.m.f. Is :
Optical fiber is based upon the principle of-
The chemical that is used to ripen mangoes is
The sense of balance is attained by:
Which among the following acid is NOT a Vitamin ?
Which of the following is used as a preservative to protect processed food?
A block of wood is floating in a lake. The apparent weight of the floating block is
Optical fibers are mainly used for which of the following?
The chemical used in embalming biological materials is
The sharpness of a television image is termed as its
Which among the following bacterial cells are found in cubical packets?
A boat will submerge when it displaces water equal to its own -
Coating of solid waste with impervious material is known as
If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the gas molecules will
Optical fibre works on the
The chief constituent of natural gas is:
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