Questions

Statement A : An engine A can perform a given work in 1 hr and engine B can prform the same work in $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$2$}\right.$ hr. then B has greater power

than A.

Statement B : Power is the dot product of force and velocity

a

A & B is correct

b

A & B are wrong

c

A is correct and B is wrong

d

A is wrong & B is correct

detailed solution

Correct option is A

We know that,

$\mathrm{p}=\frac{\u2206\mathrm{W}}{\mathrm{t}}$

As both engines produce the same amount of work, time is inversely related to power. So the power increases as time decreases.

Hence the correct answer is A&B is correct.

Talk to our academic expert!

799 666 8865

support@infinitylearn.com

6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.

JEE

JEE Mock Tests

JEE study guide

JEE Revision Notes

JEE Important Questions

JEE Sample Papers

JEE Previous Year's Papers

NEET

NEET previous year’s papers

NEET important questions

NEET sample papers

NEET revision notes

NEET study guide

NEET mock tests

Popular Books

HC Verma Part 1HC Verma Part 2RS AgarwalRD SharmaLakhmir SinghDK GoelSandeep GargTS GrewalNCERT solutions

Class 12 NCERT SolutionsClass 11 NCERT SolutionsClass 10 NCERT SolutionsClass 9 NCERT SolutionsClass 8 NCERT SolutionsClass 7 NCERT SolutionsClass 6 NCERT Solutions