- ACu.
- BConstantan.
- CTin-lead alloy.
- DNichrome.
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In vacuum an electron of energy 10 keV hits tungsten target, then emitted radiation will be
|
(a) Cathode rays |
(b) X-rays |
(c) Infrared rays |
(d) Visible spectrum |

The resistance of a wire of uniform diameter d and length L is R. The resistance of another wire of the same material but diameter 2d and length 4L will be
|
(a) 2R |
(b) R |
(c) R/2 |
(d) R/4 |
The intensity of electric field at a point between the plates of a charged capacitor
|
(a) Is directly proportional to the distance between the plates |
|
(b) Is inversely proportional to the distance between the plates |
|
(c) Is inversely proportional to the square of the distance between the plates |
|
(d) Does not depend upon the distance between the plates |
Which of the following materials is non crystalline
|
(a) Copper |
(b) Sodium chloride |
(c) Wood |
(d) Diamond |
A ray of light incident at an angle θ on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 5º and the prism is made of a material of refractive index 1.5, the angle of incidence is:
Following is the relation between current and charge
then value of VL will be
|
(a) |
(b) |
(c) |
(d) |
The figure shows a graph between ln
and ln|n|, where
is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is

|
(a) 4 |
(b) 3 |
(c) 2 |
(d) 1 |