1
JEE Main 2023 (Online) 12th April Morning Shift
Numerical
+4
-1
Change Language

Let $$I(x)=\int \sqrt{\frac{x+7}{x}} \mathrm{~d} x$$ and $$I(9)=12+7 \log _{e} 7$$. If $$I(1)=\alpha+7 \log _{e}(1+2 \sqrt{2})$$, then $$\alpha^{4}$$ is equal to _________.

Your input ____
2
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A particle is executing simple harmonic motion (SHM). The ratio of potential energy and kinetic energy of the particle when its displacement is half of its amplitude will be

A
1 : 1
B
1 : 4
C
2 : 1
D
1 : 3
3
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement I : A truck and a car moving with same kinetic energy are brought to rest by applying breaks which provide equal retarding forces. Both come to rest in equal distance.

Statement II : A car moving towards east takes a turn and moves towards north, the speed remains unchanged. The acceleration of the car is zero.

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

A
Statement I is incorrect but Statement II is correct.
B
Statement $$\mathrm{I}$$ is correct but Statement II is incorrect.
C
Both Statement I and Statement II are correct.
D
Both Statement I and Statement II are incorrect.
4
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I LIST II
A. Spring constant I. $$\mathrm{[T^{-1}]}$$
B. Angular speed II. $$\mathrm{[MT^{-2}]}$$
C. Angular momentum III. $$\mathrm{[ML^2]}$$
D. Moment of inertia IV. $$\mathrm{[ML^2T^{-1}]}$$

Choose the correct answer from the options given below:

A
A-IV, B-I, C-III, D-II
B
A-II, B-III, C-I, D-IV
C
A-II, B-I, C-IV, D-III
D
A-I, B-III, C-II, D-IV
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