Q. The rate of evaporation of liquid does not depend upon -
1) temperature
2) its surface area 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. The frequency (in Hz) of a note that is one octave higher than 500 Hz is -
1) 375
2) 750
3) 1000
4) 2000
Q. If the speed of a moving magnet inside a coil increases the electric current in the coil -
1) increases
2) decreases
3) reverses
4) remains the same
Q. If an object is at rest, then the time (X-axis) versus distance (Y-axis) graph -
1) is vertical
2) is horizontal
3) has 450 positive slope
4) has 450 negative slope
Q. Rate of evaporation increases with -
1) an increase of surface area
2) an increase in humidity
3) a decrease in wind speed
4) a decrease of temperature
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 - observed size
Q. People prefer to wear cotton clothes in summer season. This is due to the fact that cotton clothes are -
1) good absorbers of water
2) good conveyors of heat
3) good radiators of heat
4) good absorbers of heat
Q. Soap solution used for cleaning purpose appears cloudy. This is due to the fact that soap micelles can -
1) refract light
2) scatter light
3) diffract light
4) polarize light
Q. What can be the maximum duration of totality for a solar eclipse?
1) 12.5 minutes
2) 7 minutes 40 seconds
3) 1 hour 42 minutes
4) There is no maximum duration
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