- ✓$\frac{3}{4}$
- B$\frac{1}{\sqrt{2}}$
- C$\sqrt{3} / 2$
- D$\frac{1}{2}$
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Image formed by a convex mirror is
|
(a) Virtual |
(b) Real |
(c) Enlarged |
(d) Inverted |
Which of the following waves have the maximum wavelength
|
(a) X-rays |
(b) I.R. rays |
(c) UV rays |
(d) Radio waves |
The lead wires should have
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(a) Larger diameter and low resistance |
|
(b) Smaller diameter and high resistance |
|
(c) Smaller diameter and low resistance |
|
(d) Larger diameter and high resistance |
The splitting of white light into several colours on passing through a glass prism is due to
|
(a) Refraction |
(b) Reflection |
(c) Interference |
(d) Diffraction |
Consider two point charges of equal magnitude and opposite sign separated by a certain distance. The neutral point due to them
|
(a) Does not exist |
|
(b) Will be in mid way between them |
|
(c) Lies on the perpendicular bisector of the line joining the two |
|
(d) Will be closer to the negative charge |