Recent content by franklinear

Using diffraction grating, when incident parallel beam is at normal incidence, then emergent parallel beams are seen in directions such that dsinθ = nλ by considering the spacing of grating, and the order of the diffracted beams as well as the angle of diffracted beams to the normal, the...

how is the wavelength of monochromatic light measured by using diffraction grating and spectometer?

i've got it correct already. A few hours ago, I posted I1/I2=20/x Thus x=20 x I2/I1 It's just the same...

i agree with you. By comparison, I1/I2=20/x We get x= 25.

The meter in the circuit shown in the image has an uncalibrated linear scale. With the circuit as shown, the scale reading is 20. Find the scale reading when another 2000Ω resistor is connected across XY.

1. The problem statement, all variables and given/known data Three particles A, B and C all of mass m rest on a smooth horizontal plane so that angle ABC is 120 degree. B is connected to both A and C by light inextensible string which are initially just taut. An impulse J is then applied...

Use W=H1-H2 arranging equations H1=H2+W U have got H2 and W on part a. Now u need to find H1. Just plus them.