Out of 4 chairs, one is white and three are black. Two chairs are chosen at randon one by'one! without replacement. Write the sample space.

Take two concal flasks and paint one white and other black.Fill both with water. Place the conical flasks in direct sunlight for half an hour to one hour. Touch the conical flasks . Which one is hotter ? You could also measure the temperature of the water in the two conical flasks with a thermometer. Can you think of ways in which this finding could be used in your daily life ?

Out of the six faces of a die, three are marked with the number 2,two are marked with the number 1 and one is marked with the number 3.The die is tossed once. Find in how many ways the following events may occur : (i) the event of getting the number 1

Out of the six faces of a die, three are marked with the number 2,two are marked with the number 1 and one is marked with the number 3.The die is tossed once. Find in how many ways the following events may occur :(ii) the event of getting the number 2

Out of the six faces of a die, three are marked with the number 2,two are marked with the number 1 and one is marked with the number 3.The die is tossed once. Find in how many ways the following events may occur :(iii) the event of getting the number 3

Out of the six faces of a die, three are marked with the number 2,two are marked with the number 1 and one is marked with the number 3.The die is tossed once. Find in how many ways the following events may occur :(iv)the event of getting an even number

Out of the six faces of a die, three are marked with the number 2,two are marked with the number 1 and one is marked with the number 3.The die is tossed once. Find in how many ways the following events may occur :(v) the event of getting an odd number

Two tuning forks when sounded together give 4 beats per second.if one of them is in unison with 96 cm length of a monochord under constant tension and the other with 97 cm length of the same string,find the frequencies of the fork.