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Lab Manuals for ENGINEERING PHYSICS - EP By Pranshu Nema

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Department of Basic Sciences Lab Manual Subject Engineering Physics Subject Code Scheme New CBCS Class/Branch I / II Semester http://www.rgpvonline.com

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INDEX SNo Experiment Name 1 Resolving power of Telescope 2 Newton”s Ring method 3 Diffraction by Diffraction Grating 4 Semiconductor diode and Zener diode characteristics 5 Energy band gap of a semiconductor diode 6 Hall Effect and determine Hall co-efficient 7 Frequency of A. C. mains by electric vibrator 8 Calibration of voltmeter 9 Calibration of ammeter 10 Characteristics of G.M. counter 11 Wavelength of Laser light http://www.rgpvonline.com Remark

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List of Experiments 1. To determine Resolving power of Telescope. 2. To determine the wavelength of Sodium light by using Newton”s Ring method. 3. To determine the wavelength of violet and green light by Diffraction grating. 4. To plot characteristic curve of semiconductor diode and Zener diode. 5. To determine Energy band gap of a semiconductor diode. 6. To study Hall Effect and determine Hall co-efficient of semiconductor. 7. To determine the frequency of A. C. mains by using an Electric Vibrator. 8. To calibrate given voltmeter by means of potentiometer. 9. To calibrate given ammeter by means of potentiometer. 10.To study characteristics of G.M. counter. 11.To determine the wavelength of Laser light. http://www.rgpvonline.com

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RESOLVING POWER OF TELESCOPE Aim:To determine resolving power of Telescope. Apparatus Required:Telescope with rectangular variable slit, a scale with black lines of equal width which measure in millimeter and meter scale. Formula used:Theoretical value of R.P. of Telescope = a/1.22λ Practical value of R.P. of Telescope =D/d Where  = mean wavelength of light used. a = width of variable slit at the time of resolution of two object. d = distance between two black lines on the scale. D = distance between object and objective of the telescope. http://www.rgpvonline.com

Lecture Notes