Physics

In the formula : y = a sin ( at - b), where y - position, t - time and A, a, b are constants. What will be the dimensional formula of $$\frac{b}{a}$$?


ANSWER

T


SOLUTION
Dimensions of at=Dimension of b
$$\left[ a \right] \left[ t \right] =\left[ b \right] \\ \dfrac { b }{ a } =t\\ =T$$
View Answers

You're just one step away

Create your Digital Resume For FREE on your name's sub domain "yourname.wcard.io". Register Here!


Single Correct Medium Published on 18th 08, 2020
Next Question
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 197
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
If universal gravitational constant (G), speed of light (c), and time (t) are base units then the dimensional formula of mass can be represented as?
  • A. $$[G^1c^3t^1]$$
  • B. $$[G^{-1}c^3t^1]$$
  • C. $$[G^{-1}c^{-2}t^{-1}]$$
  • D. $$[G^1c^{-3}t^{-1}]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 Assertion & Reason Medium
ASSERTION

Statement I : A physical quantity can be regarded as a vector, if magnitude as well as direction is associated with it.

REASON

Statement II : A physical quantity can be regarded as a scalar quantity, if it is associated with magnitude only.

  • A. Statement-I is false, Statement-II is true.
  • B. Statement-I is true, Statement-II is false.
  • C. Statement-I is true, Statement-II is true ; Statement-II is NOT a correct explanation for Statement-I.
  • D. Statement-I is true, Statement-II is true ; Statement-II is correct explanation for Statement-I.

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q3 Single Correct Medium
Parallax method is suitable for the measurement of:
  • A. ball
  • B. planet
  • C. vehicle
  • D. distance between cities

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Single Correct Medium
Pressure is
  • A. A scalar quantity
  • B. A vector quantity
  • C. A tensor quantity
  • D. Either scalar or vector

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q5 Single Correct Medium
Light years is the unit of:
  • A. time
  • B. length
  • C. mass
  • D. none of these

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer