Units and Measurements

JEE Main 2024 (Online) 27th January Morning ShiftMCQEasy📈 Topic in 53% papers+4−1

Ques. 1JEE Main 2024, 27 January (Morning Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

Statement I is true but Statement II is false
Both Statement I and Statement II are false
Both Statement I and Statement II are true
Statement I is false but Statement II is true

Answer

(1) Statement I is true but Statement II is false

Solution

[h] = [E][ ] = ML2T-2 T-1 = ML2T-1, [L] = [mvr] = ML2T-1

Statement I is true

[p] = [mv] = MLT-1, [ ] = [rF] = ML2T-2

Statement II is false

Answer: (1)

Keep practising — Units and Measurements

Ques. 2JEE Main 2024, 27 January (Evening Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below :

Both (A) and (R) are correct and (R) is the correct explanation of (A)
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(A) is true but (R) is false
(A) is false but (R) is true

Ques. 3JEE Main 2024, 27 January (Evening Shift)

The equation of state of a real gas is given by (P+ aV2 )(V-b)=RT, where P, V and T are pressure, volume and temperature respectively and R is the universal gas constant. The dimensions of ab2 is similar to that of :

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