Wavefront of a wave has direction with wave motion
|
(a) Parallel |
(b) Perpendicular |
(c) Opposite |
(d) At an angle of π |
Wavefront of a wave has direction with wave motion
|
(a) Parallel |
(b) Perpendicular |
(c) Opposite |
(d) At an angle of π |
(b) Perpendicular
Generate a complete, print-ready paper with questions like this in minutes β across 16+ boards, with answer keys.
Which of the following is deflected by electric field
|
(a) X-rays |
(b) γ -rays |
(c) Neutrons |
(d) α -particles |
A current carrying wire in the neighborhood produces
|
(a) No field |
(b) Electric field only |
|
(c) Magnetic field only |
(d) Electric and magnetic fields |
A current of 10A is passing through a long wire which has semicircular loop of the radius 20cm as shown in the figure. Magnetic field produced at the centre of the loop is
|
(a) 10 πμT |
(b) 5 πμT |
(c) 4 πμT |
(d) 2 πμT |
In a compound microscope magnification will be large, if the focal length of the eye piece is
|
(a) Large |
(b) Smaller |
|
(c) Equal to that of objective |
(d) Less than that of objective |