In totally reflecting prism one angle is of 90°, and other two angles are of:
30°,30°
45°,90°
45°,45°
40°,40°
Spherical mirrors are used in:
Medical
Search light
Microscope
All of these
Optical fibres works on the principle of:
Reflection
Refraction
Total internal reflection
Diffraction
In compound microscope, the objective have focal length than eye-piece:
Smaller
Larger
Equal
Equal and larger
The refractive index of ice is:
1.00
1.33
1.31
2.42
In SI the unit of charge is:
Joule
Volt
Coulomb
Watt
