The magnitude of any physical quantity:

1. depends on the method of measurement.
2. does not depend on the method of measurement.
3. is more in the SI system than in the CGS system.
4. is directly proportional to the fundamental units of mass, length and time.

Subtopic:  Dimensions |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following is not equal to a watt?
1. Joule/second
2. Ampere\(\times\) volt
3. (Ampere)2\(\times\) ohm
4. Ampere/volt

Subtopic:  Dimensions |
From NCERT
PMT - 1990
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Newton–second is the unit of  

(1) Velocity

(2) Angular momentum

(3) Momentum

(4) Energy

Subtopic:  Dimensions |
From NCERT
PMT - 1984
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following is not represented in correct unit  

(1) StressStrain=N/m2

(2) Surface tension = N/m

(3) Energy =kg​-​m/sec

(4) Pressure =N/m2

Subtopic:  Dimensions |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

One second is equal to :

(1) 1650763.73 time periods of Kr clock

(2) 652189.63 time periods of Kr clock

(3) 1650763.73 time periods of Cs clock

(4) 9192631770 time periods of Cs clock

Subtopic:  Dimensions |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

One nanometre is equal to:

(1) 109mm

(2) 106cm

(3) 107cm

(4) 109cm

Subtopic:  Dimensions |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

A micron is related to centimetre as

(1) 1micron=108cm

(2) 1micron=106cm

(3) 1micron=105cm

(4) 1micron=104cm

Subtopic:  Dimensions |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The unit of power is :

(1) Joule

(2) Joule per second only

(3) Joule per second and watt both

(4) Only watt

Subtopic:  Dimensions |
 65%
From NCERT
PMT - 1985
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A suitable unit for gravitational constant is:

(1) kg- msec1

(2) Nm1sec

(3) N  m2kg2

(4) kgmsec1

Subtopic:  Dimensions |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

SI unit of pressure is

(1) Pascal

(2) Dynes/cm2

(3) cm of Hg

(4) Atmosphere

Subtopic:  Dimensions |
 80%
From NCERT
PMT - 1984
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch