A. Semi conductor
B. Conductor
C. Metals
D. Non metals
Related Mcqs:
- Which one of the following has the greatest energy gap ?
A. insulator
B. conductor
C. semi conductor
D. any of above - Geothermal energy is a _______________________ source of energy?
A. non-renewable
B. stable
C. renewable
D. none of the above - ________________ cells converts solar energy into electrical energy?
A. rotory
B. photovoltaic
C. galvanic
D. non of these - In normal state of energy the incident high energy photons will be______________?
A. Stimulated
B. Absorbed
C. Cause X-ray emission
D. Cause laser production - The velocity of sound is greatest in___________________?
A. Water
B. air
C. copper
D. ammonia - While measuring the unknown resistance the help of slide wire bridge a greatest accuracy can be achieved when__________________?
A. a most sensitive galvanometer is used
B. a steady voltage cell is used
C. the balance point is close to the middle of the wire
D. a high resistance box is used in one of its gap - A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?
A. FE
B. (FE)
C. FE2/L
D. FE2 - The energy band occupied by the valence electrons is called___________________?
A. Energy state
B. Valence band
C. ve energy state
D. conduction band - 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 - A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?
A. (F1+F2) (121+122)
B. (F1+F2) (122-112)
C. (F1+F2) (12-11)
D. (F1+F2) (12-11)
