Q. Magnification is -
1) actual size of specimen/ observed size
2) observed size of specimen/ actual size
3) actual size of specimen - observed size
4) actual size of specimen x observed size
Q. Which one of the following is active transport?
1) It is the movement of a substance against a diffusion gradient with the use of energy from respiration.
2) It is the movement of a substance against a diffusion gradient without the use of energy.
3) It is the movement of a substance against a diffusion gradient with the use of energy from photosynthesis.
4) IT is the movement of a substance along a diffusion gradient with the use of energy from respiration.
Q. Rutherford's alpha-particle scattering experiment on thin gold foil was responsible for the discovery of -
1) electron
2) proton
3) atomic nucleus
4) neutron
Q. The rate of evaporation of liquid does not depend upon -
1) temperature
2) its surface are exposed to the atmosphere
3) Its mass
4) humidity
Q. Bose-Einstein Condensate is -
1) solid state of matter
2) fifth state of matter
3) plasma
4) state of condensed matter
Q. Which one of the following instruments is used for locating submerged objects in the ocean?
1) Audio meter
2) Galvanometer
3) Sextant
4) Sonar
Q. Which of the following is a naturally occurring hardest substance on the earth?
1) Graphite
2) Wurtzite boron nitride
3) Iron
4) Diamond
Q. Driving force of an ecosystem is -
1) Carbohydrate
2) Biomass
3) Carbon
4) Solar energy
Q. An ultimate source of energy stored in fossil fuels is -
1) Earth
2) Sun
3) Sea
4) Moon
Q. Which one of the following colours of white light is least deviated by the glass prism?
1) Green colour
2) Red colour
3) Violet colour
4) Orange colour
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