What difference in behavious between the glass and sodium chloride would you except to observe if you break off a piece of either cube?

What different criteria would you choose to classify people that you meet often?

For sound waves, the Doppler formula for frequency shift differs slightly between the two situations: 1. source at rest, observer moving 2. source moving, observer at rest. The exact Doppler formulas for the case of light waves in vacuum are, however, strictly identical for these situations. Explain why this should be so. Would you expect the formulas to be strictly identical for the two situations in case of light travelling in a medium?

Answer the following questions, which help you understand the difference between Thomson and rutherford- Keeping other factors fixed, it is found experimentally that for small thickness t, the number of alpha -particles scattered at moderate angles is proportional to t. What clue does this linear dependence on t provide?

There is difference between the objects and the image in one aspect . Can you guess what the difference is ?

Draw the pattern shown on a squared paper and cut it out. You know that this pattern is a net of cube. Fold it along the lines and tape the edge to form a cube. What is the length, width and height of the cube? Observe that all the faces of a cube are square in shape. This makes length, height and width of a cube equal.

Sketch a graph between frequency of incident radiations and stopping potential for a given photosensitive material. What information can be obtained from the value of the intercept of potential axis? A source of light of frequency of greater than the threshold freuency is placed at a distance of 1 m from the cathode of a photocell? the distnace of hte light sources from the cathode is reduced explain giving reasons, what change will you observe in the Stopping potential.