Physics
Answer
The nuclear waste obtained from laboratories, hospitals, scientific establishments or power plants must be first kept in thick casks and then they must be buried in the specially constructed deep underground stores. These underground stores must be far away from the populated areas.
Related Questions
The diagram below shows a coil connected to the centre zero galvanometer.
What polarity is induced at point X when
(a) the magnet is moved towards the coil
(b) the magnet is moved away from the coil?
Some common salt is added to ice. It is found that temperature of mixture drops below 0°C. Explain the fact and where is this used?
A boy uses monochromatic green light to find the refractive index. When a ray of monochromatic green light enters in a liquid medium from air medium as shown in the figure given below, the angle 1 is 45° and angle 2 is 30°.
(a) Determine the refractive index of the liquid.
(b) Represent in the diagram showing the path of the ray after it strikes the mirror and re-enters air. Mark in the diagram wherever necessary.
(c) Draw the diagram again, if plane mirror becomes normal to the refracted ray inside the liquid. Name the principle used.
(a) Mention one difference between reflection of light from a plane mirror and total internal reflection of light from a prism.
(b) When an empty test tube is placed in a beaker of water and viewed from above, its surface appears as a mirror. Explain.