Light

PART ONE: A bright line in the spectrum of an element such as hydrogen is associated with: A) an electron orbit of low energy B) an electron orbit of high energy C) the transfer of an electron from a low energy orbit to a high energy orbit D) the transfer of an electron from a high energy orbit to a low energy orbit PART TWO: In photoelectric emission, the cutoff potential depends on A) the frequency of the incident light B) the intensity of the incident light C) the kinetic energy of the incident light PART THREE: Radio waves have very long wave lengths. They are: A) diffracted less than visible light B) diffracted more than visible light C... click for more

Grating Constant

Grating constants, problem attached.

Magnetics and Nuclides

PART ONE: The magnetic force between two long, straight, parallel conductors: A) increases as the distance between the wires decreases B) decreases as the length of the wires increases C) increases as the current in either wire decreases D) is independent of the length of the wires PART TWO: A nuclide of a transuranium element is: A) 95/36 Kr B) 138/56 Ba C) 235/92 U D)239/94 Pu

Acceleration of a meteor

What is the acceleration of a meteor when it is at a distance of 6.7X10^6m from the center of the earth?

Satellite speed

A satellite of mass 1500kg is to be placed in a circular orbit of radius of 8000km around the earth. Find the speed of the satellite.