1
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : A pendulum clock when taken to Mount Everest becomes fast.

Reason R : The value of g (acceleration due to gravity) is less at Mount Everest than its value on the surface of earth.

In the light of the above statements, choose the most appropriate answer from the options given below

A
Both A and R are correct but R is NOT the correct explanation of A
B
A is correct but R is not correct
C
Both A and R are correct and R is the correct explanation of A
D
A is not correct but R is correct
2
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Let $$\gamma_1$$ be the ratio of molar specific heat at constant pressure and molar specific heat at constant volume of a monoatomic gas and $$\gamma_2$$ be the similar ratio of diatomic gas. Considering the diatomic gas molecule as a rigid rotator, the ratio, $$\frac{\gamma_1}{\gamma_2}$$ is :

A
$$\frac{35}{27}$$
B
$$\frac{25}{21}$$
C
$$\frac{21}{25}$$
D
$$\frac{27}{35}$$
3
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

When a beam of white light is allowed to pass through convex lens parallel to principal axis, the different colours of light converge at different point on the principle axis after refraction. This is called :

A
Spherical aberration
B
Scattering
C
Polarisation
D
Chromatic aberration
4
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In an Isothermal change, the change in pressure and volume of a gas can be represented for three different temperature; $$\mathrm{T_3 > T_2 > T_1}$$ as :

A
JEE Main 2023 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 53 English Option 1
B
JEE Main 2023 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 53 English Option 2
C
JEE Main 2023 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 53 English Option 3
D
JEE Main 2023 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 53 English Option 4
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