NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 53 - 57 of 5119

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Question 53

Question Assertion-Reason▾

Assertion(Ꭺ)

Unit of Rydberg constant R is m-l

Reason(Ꭱ)

It follows from Bohr՚s formula the symbols have their usual meaning.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

Edit

Question 54

Question MCQ▾

A body travels for 15 second starting from rest with constant acceleration. If it travels distances S1 , S2 and S3 , in the first five seconds, second five seconds and next five seconds respectively the relation between S1 , S2 and S3 is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 55

Question MCQ▾

A wire has a mass 0.3 + 0.003g, radius 0.5 + 0.005 mm and length 6 + 0.06 cm. The maximum percentage error in the measurement of its density is

Choices

Choice (4)Response

a.

2

b.

3

c.

1

d.

4

Edit

Question 56

Question MCQ▾

What is the relationship between dyne and newton of force?

Choices

Choice (4)Response

a.

l dyne = 107 newton

b.

1 dyne = 10-7 newton

c.

1 dyne = 10 - 5 newton

d.

l dyne = 105 newton

Edit

Question 57

Question MCQ▾

A particle moves along x-axis with acceleration a = a0 (1 – t/T) where a0 and T are constants if velocity at t = 0 is zero then find the average velocity from t = 0 to the time when a = 0.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit