NEET Physics: Questions 44 - 47 of 2099

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 44

» Physics and Measurement » Fundamental and Derived Units. Least Count

Assertion-Reason▾

Assertion (Ꭺ)

L/R and CR both have same dimensions.

Reason (Ꭱ)

L/R and CR both have dimension of time.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are false
b. Ꭺ is true but Ꭱ is false
c. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
d. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 45

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A particle starts from rest. Its acceleration (a) versus time (t) graph is as shown in the figure. The maximum speed of the particle will be

Its acceleration (a) versus time (t) graph is as shown in.

Its Acceleration (A) Versus Time (T) Graph Is as Shown in.

Its acceleration (a) versus time (t) graph is as shown in the figure

Choices

Choice (4) Response
a.

110m/s

b.

550m/s

c.

660m/s

d.

55m/s

Question number: 46

» Kinematics » Motion in a Straight Line

MCQ▾

Question

P, Q and R are three balloons ascending with velocities U, 4U and 8U respectively. If stones of the same mass be dropped from each, when they are at the same height, then

Choices

Choice (4) Response
a.

Stone from R reaches the ground first

b.

They reach the ground at the same time

c.

Stone from P reaches the ground first

d.

Stone from Q reaches the ground first

Question number: 47

» Kinematics » Motion in a Plane

MCQ▾

Question

Three different objects of masses m1, m2 and w3 are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of

Choices

Choice (4) Response
a.

1m1: 1m2: 1m3

b.

m 1 : m 2: m 3

c.

1: 1: 1

d.

m 1 : 2m 2: 3m 3

Sign In