1
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

A raft of density 600 g/m$$^3$$ and mass 120 kg floats in water. How much weight can be put on the raft to make it just sink?

A
120 kg
B
200 kg
C
40 kg
D
80 kg
2
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

Water is poured in a tank through a cylindrical tube of area of cross-section A and ejecting water at a constant speed 4 m/s. the tank contains a hole of area $$\frac{A}{2}$$ at bottom. Level of water in the tank will not go up beyond

A
5.6 m
B
4.8 m
C
3.2 m
D
1.8 m
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

According to Pascal's law, pressure in a fluid at rest is the same at all points, if

A
they are at the same plane
B
they are at the same height
C
they are along same line
D
Both (a) and (b)
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

The surface tension of a liquid at its boiling point

A
becomes zero
B
becomes infinity
C
is equal to the value at room temperature
D
is half of the value at room temperature
COMEDK Subjects
EXAM MAP