Light of wavelength λ passes through a single slit of width a. The diffraction pattern is observed on a screen that is very far from from the slit. Which of the following will give the greatest increase in the angular width of the central diffraction maximum?
(a) It cannot be changed Reduce the slit width to a/2 and increase the wavelength to 2λ (b) Increase the slit width to 2a and reduce the wavelength to λ/2 (c) Increase the slit width to 2a and increase the wavelength to 2λ(d) Reduce the slit width to a/2 and reduce the wavelength to λ/2(e) It cannot be changed

J. j. thomson’s experiment disproved the theory that an atom

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r