1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A 30 cm long capillary tube is dipped in water, water rises upto a height of $10$ cm due to capillarity. If this experiment is conducted in a freely falling water in an elevator, then the length of the water column becomes
A
$10$ cm
B
$20$ cm
C
$30$ cm
D
Zero
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Instrument fitted in the carburetor of the automobile to provide the correct mixture of air and fuel necessary for combustion works on
A
Pascal's Law
B
Bernoulli's Principle
C
Newton's Law of Cooling
D
Archimede's Principle
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Following are statements of a few processes taking place in nature.
I. Free expansion of a gas
II. The combustion of a mixture of petrol and air ignited by a spark
III. The leaking of gas from the kitchen cylinder.
IV. The transfer of heat from one heated part of a liquid to the other colder part.
Which amongst these processes are irreversible in nature?
A
I and II
B
I and III
C
II, III and IV
D
I, II, III and IV
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
In thermodynamic processes, which of the following statements is not true?
A
In an isothermal process, the temperature remains constant
B
In an isobaric process, the volume remains constant
C
In an adiabatic process, the system is insulated from the surroundings
D
In an adiabatic process, $PV^\gamma = $ a constant