class 12 physics Notes
class 12 physics Notes
Physics Notes For Class 12
CBSE class 12 chapter wise Physics notes
Class 12 Important Questions for Physics
Most important class 12 question
Probably these questions come last 20 yrs of 12th BOARD EXAM physicswallahAlakhpandey notes best pdf notes free Read/Download class 12 notes Physics notes of class 12th , handwritten notes Physicswallah Typed CBSE Class 12 Chemistry , CBSE Class 12 Physics. JEE NEET Study
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Physics Notes for class 12
Answers of assignment are given at the end of each assignment with complete solutions. Physicswallah Typed CBSE Class 12 Chemistry , CBSE Class 12 Physics. JEE NEET Study Material : Notes , Assignment. Physics Notes , Physics Assignment , Physics Quiz , HC Verma physicswallahAlakhpandey notes best pdf notes free Read/Download class 12 notes Physics notes of class 12th , handwritten notes
Physics Notes for Class 12:
Q. 1 A double convex lens of glass of refractive indicator1.5 has its both faces of equal perimeter of arch of 20 cm each. An object of height 5 cm is placed at a distance of 15 cm from the lens. Calculate size of image formed.
Q. 2 A concentering lens has a focal length of 23 cm in air. It's made of a material of refractive indicator1.5. It's immersed in a liquid of refractive indicator1.2. Calculate its new focal length.
Q. 3 Distinguish the fascinating plots of dia, para and ferromagnetic substances in term of
. Weakness
Fascinating permeability
Coercivity
Q. 4 Give an exemplification of each of these outfit. Draw the field lines due to an external charismatic field near a (a) diamagnetic (b) Paramagnetic substance.
Q. 5 Raman’s Father bought a new flat in a multistory One day he went to visit the edifice and flat. There, he initiate that there's no provision for forestalling the damage caused by lighting. He told about it to his father. They meet to the register of the edifice society and explained them about lightning strike. Raman told them the manner to fend edifice from lightning.
What values were displayed by Raman?
Explain the methodology to fend edifice from lightning.
Q. 6 Draw a labelled circuit graphic of a moving coil galvanometer. Prove that in a radial bewitching field, the detour of the coil is directly commensurable to the current flowing in the coil.
Q. 7 Draw a labelled circuit visual of a cyclotron. Explain elliptically how it works and how it's used to accelerate the charged snip.
Q. 8 Show that time period of ions in cyclotron is independent both the speed and circumference of the roundabout path.
Show that cyclotron frequence is independent of energy of molecule.
Q. 9 What's meant byr.m.s. value ofa.c. ande.m.f.? gather an expression forr.m.s value of intermingling current (a.c.) and electromotive force (e.m.f.)
Ana.c. source of voltage V = Vo sin ωt is connected one by one to three circuit essentials X, Y andZ. It's observed that the current flowing in them
is in phase with the applied voltage for elementX.
lags the applied voltage, in phase by π/ 2 for elementY.
leads the applied voltage, in phase by π/ 2 for elementZ.
Q. 10 Identify the three circuitelements.Find an expression for the (a) current flowing in the circuit, (b) net impedance of the circuit, when the samea.c. source is connected across a series combination of the grammar X, Y andZ.
Q. 11 If the frequentness of the applied voltage is varied, set up the condition of the frequentness when the current reach in the circuit is maximum. Write the expression for this current extent.
Q. 12 Draw a shaft plate to show the working of a astronomical telescope. Judge an expression for total overstatement when the final image is formed at (a) least distance of distinct vision, (b) foreverness
. (a) Trace the shafts of light showing the setout of an image due to a point object placed on the axis of a round skin separating the two media of refracting needles m1 and m2. (b) Establish the relation between the distance of the object, image compass of inflection from the central point of the round skin. Hence judge the expression for the lens maker’s formula.
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