A. Nm-2
B. Jm-2
C. Nm-1
D. Being a number it has no unit.
Related Mcqs:
- When a force is applied at one end of an elastic wire it produces at strain ∝ in the wire. If y is the youngs modulus of the material of the wire the amount of energy stored per unit volume of the wire is given by_________________?
A. Y∝
B. 2Y∝
C. Y∝/2
D. Y∝2 - The ration stress to strain in youngs modulus of the material then tension is__________________?
A. Directly proportional to extension
B. Directly proportional to strain
C. Directly proportional to square of amplitude
D. Inversely proportional to extension - A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
A. 2×108 Nm-2
B. 5×106 Nm-2
C. 0.5×10-6 Nm-2
D. 0.2×10-6Nm-2 - A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?
A. 0.025J
B. 0.50J
C. 0.75J
D. 0.100J - Which of the following substances posses the highest elasticity ?
A. Rubber
B. Steel
C. Glass
D. Copper - The dimension of elastic modulus is ___________________ ?
A. ML-1T-2
B. ML-2T-2
C. MLT-2
D. ML2T-2 - Young’s modulus is the property of __________?
A. Gas only
B. Liquid only
C. Solid only
D. All of the aboveSubmitted by: Naveed Tahir
- Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?
A. magnetic flux
B. magnetic field intensity
C. magnetic induction
D. self inductance - We prefer mercury as a thermometric substance because______________?
A. Over a wide range of temperature its expansion is uniform
B. It does not stick to thermometer glass
C. It opaque to light
D. All of above - With the increase of pressure, the boiling point of any substance:
A. Decreases
B. Increases
C. Remains same
D. Becomes ZeroSubmitted by: Naveed Tahir
