Physics

# choose the INCORRECT statement :

A dimensionally correct equation may be incorrect

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Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 199

#### Realted Questions

Q1 Subjective Medium
How many types of errors are there?

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium

The dimension of $\cfrac {1}{2}\epsilon_o E^2$ permittivity of free space and E:
Intensity of electric field) is

• A. $[MLT^{-1}]$
• B. $[ML^2T^{-1}]$
• C. $[ML^{-1}T^{-2}]$
• D. $[ML^2T^{-2}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Mass of a substance measured by the student is $1.56,1.60,1.62,1.52 , \mathrm { gm }$.The average absolute error in the measurement is
• A. $0.03 \mathrm { gm }$
• B. $0.02 \mathrm { gm }$
• C. $0.89 \mathrm { gm }$
• D. $0.2 \mathrm { gm }$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
The sun's angular diameter is measured to be $1920 ''$. The distance of the sun from the earth is $1.496 \times 10^{11} m$. What is the diameter of the sun?
• A. $1 \times 10^9 m$
• B. $1.39 \times 10^9 m$
• C. $13.9 \times 10^9 m$
• D. $139 \times 10^9 m$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Subjective Medium
The wavelength of light of a particular colour is 5800 $\mathring{A}$. What is its order of magnitude in meter?

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020