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If h is planck’s constant and λ is wavelength, h/λ has dimensions of
Options
(a) momentum
(b) energy
(c) mass
(d) velocity
Correct Answer:
momentum
Explanation:
Dimension of Planck’s constant = ML²T⁻¹
Dimension for wavelength = L
h/λ = MLT⁻¹
Which is same as that of dimension of momentum
Related Questions: - Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
- An object is seen through a simple microscope of focal length 12 cm.
- A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Physical World and Measurement
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
- An object is seen through a simple microscope of focal length 12 cm.
- A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
- A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
- The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol.
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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