The number of significant figures in 5.400 is________________?

Related Mcqs:

1. In any measurement the significant figures are______________?

   A. All accurately known and all doubtful digits
   B. Only accurately known digits
   C. Only doubtful digits
   D. All accurately known digits and the first doubtful digit

2. Number of significant figures in 0.0173 is_________________?

   A. 3
   B. 4
   C. 5
   D. 2

3. The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________?

   A. 4
   B. 3
   C. 2
   D. None of these

4. The number 76.85 is rounded off up to two significant figures as_____________?

   A. 76.8
   B. 77
   C. 76.9
   D. None of these

5. An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?

   A. 2KWh
   B. 20KWh
   C. 6KWh
   D. 12KWh

6. The resistance of a conductor at absolute zero (OK) is________________?

   A. zero almost
   B. infinite almost
   C. no prediction at all
   D. may increase or decrease

7. The frequency of a circuit consisting of a capacitance C and a resistor R is________________?

   A. C/R
   B. R/C
   C. 1/RC
   D. 1/ 2RC

8. The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?

   A. Karl-Weins law
   B. Rayleigh-Jeans law
   C. Stephens law
   D. Plancks

9. In p-n-p transistor the collector current is________________?

   A. equal to emitter current
   B. slightly less than emitter current
   C. greater than emitter current
   D. any of above

10. The unit of entropy is________________?

    A. J.K
    B. J/K
    C. N.m/sec
    D. Kgm2/sec2.K