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In the equation y=a sin(?t+kx),the dimensional formula of ? is
Options
(a) [M⁰L⁰T⁻¹]
(b) [M⁰LT⁻¹]
(c) [ML⁰T⁰]
(d) [M⁰L⁻¹T⁰]
Correct Answer:
[M⁰L⁰T⁻¹]
Explanation:
Angle is dimension less quantity. So the argument (?t-kx) is a dimension less. Therefore, ?t as well as kx are also dimension less.
Dimension of t is T. So dimension of ? must be T⁻¹
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Question Type: Memory
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Difficulty Level: Easy
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The rms current in an AC circuit is 2 A. If the wattless current be √3 A,
- Three capacitors each of capacitance C and of breakdown voltage V are joined in series
- An inductor 20 mH, a capacitor 50 μF and a resistor 40Ω are connected in series
- The focal length of the objective of a terrestrial telescope is 80 cm
- Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact
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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