0.15ms-2
0.30ms-2
0.60ms-2
3.33ms-2
6.66ms-2
Correct answer is B
No explanation has been provided for this answer.
124.50cm3
125.00cm3
126.00cm3
126.25cm3
126.50cm3
Correct answer is E
No explanation has been provided for this answer.
0.05cm
0.01cm
0.005cm
0.001cm
0.0001cm
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements about evaporation and boiling is FALSE?
Evaporation may take place at any temperature.
In evaporation, vapour escapes only from the surface of a liquid
The temperature remains constant as long as the liquid is boiling
The temperature at which boiling takes place can be altered by changing the external pressure
The rate of evaporation does not depend on temperature.
Correct answer is E
No explanation has been provided for this answer.
The image obtained on the screen of a pin-hole camera becomes less sharply defined when the
object is moved farther from the pin-hole
screen is moved farther from the pin-hole
object is made smaller
illumination is made more intense
pin-hole is made larger.
Correct answer is E
No explanation has been provided for this answer.