A. Conservation of energy
B. Conservation of Linear Momentum
C. Conservation of Mass
D. Conservation of Angular momentum
✅ The correct answer is option B.
Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up?
A. Capillary action
B. surface tension
C. atmospheric pressure
D. cohesive forces
✅ The correct answer is option C.
Which among the following character of mercury makes it suitable to use in barometers instead of water?
A. Low density and low vapor pressure
B. High density and high vapor pressure
C. Low density and good conductor of heat
D. High density and low vapor pressure
✅ The correct answer is option D.
When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube?
A. rises
B. falls
C. falls then rises
D. remains unaltered
✅ The correct answer is option A.
what happens when a ship enters a Sea from a river ?
A. It rises
B. It remains at the same level
C. sinks a little
D. None of the above
✅ The correct answer is option A.
A transition from the solid to gas phase with no intermediate liquid stage is called?
A. Evaporation
B. Sublimation
C. Adsorption
D. Solid Phase extraction
✅ The correct answer is option B.
Which among the following works while we wipe with a towel.?
A. evaporation
B. osmosis
C. capillary action
D. surface tension
✅ The correct answer is option C.
If water is heated , it vapor pressure will ______?
A. Increase
B. decrease
C. first increase and then decrease
D. nothing happens to vapor pressure
✅ The correct answer is option A.
When two mercury drops are brought into contact they form a single bigger drop to get which of the following?
A. Minimum volume
B. Minimum surface area
C. Maximum size
D. Maximum surface area
✅ The correct answer is option B.
On a smooth glass surface , the drop of water spreads while the drop of mercury remains almost spherical. This proves that ________?
A. Cohesive forces of mercury is more than adhesive forces with glass
B. Cohesive force of water is less than cohesive forces of mercury
C. mercury is a metal
D. 1 & 2
✅ The correct answer is option A.