Physics
The diagram below shows an object AB kept in front of the lens. The path of one ray coming from the object is shown:
(a) Name the lens L.
(b) Redraw and complete the ray diagram showing the formation of the image.
(c) In which optical instrument, is this kind of image formed?
Related Questions
(a) What is meant by static equilibrium? Give one example.
(b) A pulley system has four pulleys in all and is 95% efficient. Calculate
- MA
- Effort required to lift a load of 1000 N
A virtual, diminished image is formed when an object is placed between the optical centre and the principal focus of a lens.
(i) Name the type of lens which forms the above image.
(ii) Draw a ray diagram to show the formation of the image with the above stated characteristics.
(a) Define electromagnetic spectrum.
(b) Write two uses of ultraviolet rays.
(c) Calculate the speed of electromagnetic wave in a glass slab in which its frequency is 4 x 1014 Hz and wavelength is 500 nm.
A uniform meter scale of mass 60 g, carries masses of 20 g, 30 g and 80 g from points 10 cm, 20 cm and 90 cm marks. Where must be the scale hanged with string to balance the scale?