Skip to content

Dimensionless Quantities

Easyphysics

Which is dimensionless?

Select the correct option:

🔒 Solution Hidden from View

Submit your answer to unlock the detailed step-by-step solution.

More physics and measurement Practice Questions

HardNEET

An experiment determines acceleration due to gravity using a pendulum, with the period known to 1% a...

View Solution→
MediumNEET

A workshop technician uses a screw gauge whose pitch is 1 mm and whose circular scale carries 100 eq...

View Solution→
HardNEET

A researcher derives the time period of a simple pendulum and suspects it depends on length and grav...

View Solution→
MediumNEET

A surveyor multiplies a measured length of 4.2 m by a measured width of 3.15 m to find the area of a...

View Solution→
EasyNEET

A traffic study records a vehicle moving at a steady speed of 72 km/h along a straight highway segme...

View Solution→
EasyNEET

A student records the period of an oscillating spring four times as 2.01 s, 2.05 s, 1.99 s and 2.03 ...

View Solution→
MediumNEET

A student tries to verify an equation containing a sum of a trigonometric term and a constant using ...

View Solution→
HardNEET

A physicist examines the coefficient of viscosity that appears when describing the slow flow of hone...

View Solution→
EasyNEET

Four students repeatedly measure a fixed rod whose true length is 50.0 cm, and one student's reading...

View Solution→
MediumNEET

An observatory uses the parallax method to measure the distance of a nearby star by recording its an...

View Solution→
HardNEET

While studying photon energy, a learner encounters Planck's constant in the relation linking energy ...

View Solution→
EasyNEET

A teacher writes the kinetic energy expression for a moving ball and asks students to confirm its di...

View Solution→

Browse all physics and measurement questions →

About This Question

Subject
physics
Chapter
physics and measurement
Topic
dimensionless quantities
Difficulty
Easy
Year
2025
Tags
DimensionlessExamples

Solution

Correct Answer:

All of these

Dimensionless quantities are ratios of similar physical quantities.

  1. Strain: (Length / Length). Dimensionless.
  2. Refractive Index: (Speed / Speed). Dimensionless.
  3. Angle: (Length / Length). Dimensionless. Even though angles have units (degrees/radians), they do not have physical dimensions ().

This easy difficulty physics question is from the chapter physics and measurement, covering the topic of dimensionless quantities. It appeared in the 2025 exam.

Looking for more practice? Explore all physics questions or browse physics and measurement questions on RankGuru.