- ADyne
- BSiemen
- COhm
- DVolts
Explanation:
Unit of conductance is siemen.
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The mass and energy equivalent to 1 a.m.u. respectively
|
(a) 1.67 |
(b) 1.67 |
|
(c) 1.67 |
(d) 1.67 |
Three wires of copper, iron and nickel are joined to form three junctions as shown in Fig. When the temperature of junction 1 is kept 50℃ with the other two junctions at 0℃, the sensitive galvanometer gives a deflection of 14 divisions. When the temperature of junction 3 is kept 50℃, with the other two junctions at 0℃, the galvanometer gives a deflection of 11 divisions. Then the deflection given by the galvanometer, when temperature of the junction 2 is kept at 50℃, with the other two junctions at 0℃, will be
|
(a) 3 div |
(b) 11 div |
(c) 14 div |
(d) 25 div |
A plane wavefront (λ = 6 falls on a slit 0.4 mm wide. A convex lens of focal length 0.8 m placed behind the slit focusses the light on a screen. What is the linear diameter of second maximum
|
(a) 6mm |
(b) 12 mm |
(c) 3 mm |
(d) 9 mm |
In the circuit shown in the figure, the current through

| (a) The 3 W resistor is 0.50A |
(b) The 3 W resistor is 0.25 A |
|
(c) The 4 W resistor is 0.50A |
(d) The 4 W resistor is 0.25 A |
The current through a 4.6 H inductor is shown in the following graph. The induced emf during the time interval t = 5 milli-sec to 6 milli-sec will be

|
(a) 103 V |
(b) – 23 × 103 V |
(c) 23 × 103 V |
(d) Zero |
The antenna current of an AM transmitter is 8 A when only carrier is sent but increases to 8.96 A when the carrier is sinusoidally modulated. The percentage modulation is
|
(a) 50% |
(b) 60% |
(c) 65% |
(d) 71% |
For continuous X-rays produced wavelength is
|
(a) Inversely proportional to the energy of the electrons hitting the target |
|
(b) Inversely proportional to the intensity of the electron beam |
|
(c) Proportional to intensity of the electron beam |
|
(d) Proportional to target temperature |