XI Physics | Solved Numericals| Chapter No.13 Physical Optics | Part 2

Описание: Numericals:
12. The diffraction pattern from a single slit of width 0.020 mm is viewed on a screen. If the screen is 1.20 m from the slit and light of wavelength 430 tun is used. What is the width of the central maximum?
13. A grating has exactly 8000 lines uniformly spaced over 2.54 cm and is illuminated by light from a mercury vapor discharge lamp. What is the expected angle for the third order maximum of the light of wavelength 546 nm.
14. How many lines per centimeter are there in a grating which gives 1" order spectra at an angle of 30° when the wavelength of light is 6 x cm?
15. Light of wavelength 450 nm is incident on a diffraction grating on which 5000 lines/cm have been ruled. Determine (i) How many orders of spectra can be observed on either side of spectra? (ii) Determine the angle corresponding to each order.
16. Why does a crystal act as a three dimensional grating for X-rays but not for visible light?
17. A beam of X-rays of wavelength 0.071 nm is diffracted by a diffracting plane of rock salt with distance between the atomic planes are 1.98A° Find the glancing angle for the second-order diffraction.
18. Unpolarized light passes through two polarizers in tumwith polarization axes at 45° to each other. What is the fraction of the incident light intensity that is transmitted?
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Unit 1 Measurements

Q.1 to Q.9    • XI Physics | Solved Numericals| Chapter No...  


Unit 2 Kinematics

Q.1 to Q.6    • XI Physics Solved Numericals | Ch# 2 Kinem...  


Unit 3 Dynamics

Q.1 to Q.7    • XI Physics Solved Numericals | Ch# 3 Dynam...  


Unit 4 Rotational and Circular Motion

Q.1 to Q.5    • XI Physics | Solved Numericals| Chapter No...  

Q.6 to Q.9    • XI Physics | Solved Numericals| Chapter No...  

Q.10 and Q 11    • XI Physics | Solved Numericals| Chapter No...  


Unit 5 Work, Energy and Power

Q.1 to Q.6    • XI Physics | Solved Numericals| Chapter No...  

Q.7 to Q11    • XI Physics | Solved Numericals| Chapter No...  


Unit 6 Fluid Statics

Q.1 to Q.5    • XI Physics | Solved Numericals| Chapter No...  

Q.6 to Q.10    • XI Physics | Solved Numericals| Chapter No...  


Unit 7 Fluid Dynamics

Q.1 to Q.5    • XI Physics | Solved Numericals| Chapter No...  

Q.6 to Q. 10    • XI Physics | Solved Numericals| Chapter No...  


Unit 8 Electric Fields

Q.1 to Q.5    • XI Physics | Solved Numericals| Chapter No...  

Q.6 to Q.10    • XI Physics | Solved Numericals| Chapter No...  


Unit 9 Capacitors

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Q.4 to Q.7    • XI Physics | Solved Numericals| Chapter No...  


Unit 10 DC Circuits

Q.1 to Q.6    • XI Physics | Solved Numericals| Chapter No...  

Q.7    • XI Physics | Solved Numericals| Chapter No...  


Unit 11 Oscillations

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Q.6 to Q.10    • XI Physics Solved Numericals | Chapter No....  


Unit 12 Acoustics

Q.1,4,5,6    • XI Physics | Solved Numericals| Chapter No...  

Q.7,8 and 10    • XI Physics | Solved Numericals| Chapter No...  


Unit 13 Physical Optics

Q.1,2,4,5    • XI Physics | Solved Numericals| Chapter No...  

Q.12 to Q.15, 17,18    • XI Physics | Solved Numericals| Chapter No...  


Unit 14 Communication

No Numericals