MCQ ON LASER Q1. The emission process responsible for producing laser is a)Spontaneous emission b) stimulation emission  c.) ultraviolet emission d.) infrared emission Q2. For laser action to occur, the medium must have at least a.) Four energy levels b.) two energy levels c.) […]
To determine the He-Ne gas LASER wavelength we use grating element. Which have 15000 lines per inch or it may very from laboratory to the laboratory. Diffraction Grating Experiment Quiz, it will help you to make your concept more clear about the experiment. Experiment means […]
The reflection of light by spherical mirrors or curved surfaces, we will study in this topic. Before I explain the steps I would recommend you to learn basic fundamentals or terminology that we use for mirrors. 1. Reflection of Light by Spherical Mirrors Reflection of […]
Multiplication table of 19 is written here in continuation of tables 18 and 19 for kids. TABLE OF 20 20 x 1 = 20 20 x 2 = 40 20 x 3 = 60 20 x 4 = 80 20 x 5 = 100 20 […]
Multiplication table of 19 is written here in continuation of tables 17 and 18 for kids. TABLE OF 19 19 x 1 = 19 19 x 2 = 38 19 x 3 = 57 19 x 4 = 76 19 x 5 = 95 19 […]
Multiplication table of 18 is written here in continuation of tables 16 and 17 for kids. TABLE OF 18 18 x 1 = 18 18 x 2 = 36 18 x 3 = 54 18 x 4 = 72 18 x 5 = 90 18 […]
Multiplication table of 11 is written here in continuation of tables 9 and 10 for kids. TABLE OF 11 11 X 1 = 11 11 X 2 = 22 11 X 3 = 33 11 X 4 = 44 11 X 5 = 55 11 […]
Multiplication table of 10 is written here in continuation of tables 8 and 9 for kids. TABLE OF 10 10 X 1 = 10 10 X 2 = 20 10 X 3 = 30 10 X 4 = 40 10 X 5 = 50 10 […]