- Reflection.
- Interference.
- Diffraction.
- Polarization.
Explanation:
Reflection, interference and diffraction are the phenomena shown by both transverse waves and longitudinal waves. Polarization is the phenomenon shown only by transverse waves.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
An electric kettle has two heating coils. When one coil is used, water in the kettle boils in 5 minutes, while when second coil is used, same water boils in 10 minutes. If the two coils, connected in parallel are used simultaneously, the same water will boil in time
|
(a) 3 min 20 sec |
(b) 5 min |
(c) 7 min 30 sec |
(d) 2 min 30 sec |
X-rays region lies between
| (a) Short radiowave and visible region | (b) Visible and ultraviolet region |
| (c) Gamma rays and ultraviolet region | (d) Short radiowave and long radiowave |
The de-Broglie wavelength λ associated with an electron having kinetic energy E is given by the expression
|
(a) |
(b) |
(c) 2mhE |
(d) |
In a plano-convex lens the radius of curvature of the convex lens is 10 cm. If the plane side is polished, then the focal length will be (Refractive index = 1.5)
|
(a) 10.5 cm |
(b) 10 cm |
(c) 5.5 cm |
(d) 5 cm |