Home
Class 12
PHYSICS
Assertion : identical springs of steel a...

Assertion : identical springs of steel and copper are equally stretched. More work will be done on the steel spring.
Reason : Steel is more elastic than copper.

A

Assertion is correct, reason is correct, reason is a correct explanation for assertion.

B

Assertion is correct, reason is correct, reason is not a correct explanation for assertion

C

Assertion is correct, reason is incorrect

D

Assertion is incorrect, reason is correct

Text Solution

Verified by Experts

The correct Answer is:
A
Work done `
Promotional Banner

Similar Questions

Explore conceptually related problems

Two identical springs of copper and steel are equally strectched. On which more work will have to be done?

Identical springs of stecl and copper (Y_("Steel") gt Y_("copper")) are equally stretched.

A spring is made of steel and not of copper because

Two exactly similar wires of steel and copper are stretched by equal force. If the total elongation is 2 cm, then how much is the elongation in steel and copper wire respectively? Given, Y_("steel")=20xx10^(11)"dyne/cm"^(2),Y_("copper")=12xx10^(11)"Dyne/cm"^(2)

Steel contains more carbon than wrought iron

Assertion :- When a spring is elongated work done by spring is negative but when it compressed work done by spring is positive. Reason :- Work done by spring is path dependent

Assertion: A spring has potential energy , both when it is compressed or stretched. Reason: In compressing or stretching, work is done on the spring against the restoring force.

Assertion Upto elastic limit of a stress-strain curve, the steel wire tends to regain its original shape when stress is removed. Reason Within elastic limit, the wire follows Hooke's law.

A heavy plank of mass 100 kg hangs on three vertical wires of equal length arranged symmetrically (see figure). All the wires have the same cross - section. The middle wire is of steel and the other two are of copper . The modulus of elasticity of steel is assumed to be double that copper. Determine the tensions in the wire. (use g=9.8ms^-2 )

Assertion :-HCl is more polar than HF. Reason :- Cl has more E.N. than F.