Physics

Fill in the blanks type
Planck's constant has dimensions ________


SOLUTION
$$E=h\upsilon$$
$$h\to $$ planck's constant
$$\upsilon\to T^{-1}$$
$$E\to ML^2T^{-2}$$
So, $$ML^2t^{-2}=h.T^{-1}$$
$$h\to ML^2T^{-1}$$
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!


Subjective Medium Published on 18th 08, 2020
Next Question
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 201
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
The S.I. unit of velocity is
  • A. $$km\,h^{-1}$$
  • B. $$m \,min^{-1}$$
  • C. $$km\, min^{-1}$$
  • D. $$m\, s^{-1}$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 Single Correct Medium
The dimensional formula for electric intensity is
  • A. $$\left[ { M }^{ 1 }{ L }^{ 1 }{ T }^{ 3 }{ A }^{ -1 } \right] $$
  • B. $$\left[ { M }^{ }{ L }^{ -1 }{ T }^{ 3 }{ A }^{ 1 } \right] $$
  • C. $$\left[ { M }^{ 1 }{ L }^{ 1 }{ T }^{ -3 }{ A }^{ -1 } \right] $$
  • D. $$\left[ { M }^{ 1 }{ L }^{ 2 }{ T }^{ 1 }{ A }^{ 1 } \right] $$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q3 Single Correct Medium
In lab one student obtained a weight measurement of $$3.2 kg$$ for a given substance, but the actual or known weight is $$10 kg$$, then his measurement is :
  • A. accurate
  • B. not accurate
  • C. precised
  • D. not presiced

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Single Correct Hard
Two forces $$P$$ and $$Q$$ act at a point and have resultant $$R$$. If $$Q$$ is replaced by $$\dfrac{\left ( R^{2}-P^{2} \right )}{Q} $$ acting in the direction opposite to that of $$Q$$, the resultant:
  • A. remains same
  • B. becomes half
  • C. becomes twice
  • D. none of these

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