Everyday Science Mcqs

A device which converts chemical energy into electrical energy is called __________?

A. motor
B. generator
C. moving-coil meter
D. battery

Batteries are devices that convert stored chemical energy into useful electrical energy. It consists of a number of voltaic cells connected in series by a conductive electrolyte containing anions and cations. A battery may be thought of as a clever variant of a standard exothermic chemical reactor that yields chemical products with lower energy content than the chemical reactants.
Also read about A device that converts mechanical energy into electric energy is called_______?

A. Kelvin
B. Thomson
C. Rutherford
D. Bacquerel

A. 1 g/cm3
B. 1.5 g/cm3
C. 2 g/cm3
D. none of these

A. 60
B. 120
C. 180
D. 240

A. also decrease
B. increase
C. remains constant
D. none of these

A. Night blindness
B. rickets
C. scurvy
D. hair fall

Long-sight defect could be corrected by using __________ lens?

A. concave
B. Convex
C. diverging
D. none of these
ALSO CHECK: Short-sight defect could be corrected by a _____________ lens?

A. Nitrogen
B. Carbon dioxide
C. Methane
D. Tetrafluoroethane

Tetrafluoroethane: It is one of the commonly used refrigerant gases which you can find in almost all the present time refrigerators. This gas is condensed effectively so that it can cool down the surroundings of the machine without causing the problem of ozone depletion.

A. Ampere
B. Coulomb
C. Ohm
D. Volt

A. scurvy
B. rickets
C. night blindness
D. None of these