JEE Main & Advanced
Physics
Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन
Question Bank
Mock Test - Mechanical Properties of Fluids
question_answer
A 20-cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator, the length of the water column in the capillary tube will be
A)20 cm
B)4 cm
C)10 cm
D)8cm
Correct Answer:
A
Solution :
[a] In the condition of weightlessness, water rises to the whole of the available length.