20 Physics -- Pastpapers

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Formulae Collection for Heat, Optics and Electricity

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OPTICS

Heat and Thermodynamics

Electricity

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Diesel Engine

Diesel EngineThe diesel engine was developed by Rudolf Diesel in 1892. This engine consists of a cylinder fitted with three-piston.Diesel engine PV-diagram A heat engine with 100% efficiency is onl...

Heat and Temperature

Thermal Expansion

Relation between expansivities and Liqud Expansion

Introduction to Circular Motion

NEB Model Question PHYSICS XI

NEB MODEL QUESTION FOR PHYSICSClass: 11For: 2070Time : 3 hrsFull Marks: 75Pass marks: 27Group ‘A’ Q.1. Answer in brief, any SIX questions. [2 X 6 = 12] (a) What is the difference between accurate a...

Past questions on Optical Instrumentsk

OPTICAL INSTRUMENTSShort questions answers1.2075 GIEQno. 3a. How is it possible to block the huge sun just with a small coin placed in-front of your eye?2. 2071 SET C Qno. 3a. What do you mean by a...

Class XI Physics Practice Set

Class XI Physics Practice SetGroup: A 1. Answer in brief, any six questions: (6 X 2=12) a) Prove that the maximum horizontal range is four times the maximum height attained by the projectile when f...

Class 11 Physics Pre-Board Examination-2020 [St. Xavier's College]

Group A1. Answer in brief, any six questions: [6x2=12]a. Write the dimensional formula of the capacitance and the universal gas constant.b. Why spinning top can erect at its apex where...

XI-PHYSICS NEB (2076/2019)

Revision Notes & Formulas for Simple Harmonic Motion

Any motion that repeats itself after regular intervals of time is known as a periodic motion. The examples of periodic motion are the motion of planets around the Sun, motion of hands of a clock, m...

Physics | Annual exam 2020 | St. Xavier's College

Projectile and Drag force

Drag force due to air causes great effects on the projectile of the body. Before going to drag force, let's have a brief calculation on a projectile of a body when air isn't present.

Circular Motion (Notes)

Silvering of lens

SILVERING OF LENS (i) plano-convex is silveredAlso see : (Click on these quick links)The behaviour of lens under varying circumstances1. A lens in the different refractive index: http://www.as...

Variation of Acceleration due to gravity (g)

Physics Question Paper ~ 2078

Rewrite the correct option in your answer sheet. [1 × 11 = 11] 1. The dimensional formula of the bulk modulus for a material is (a) [ ML2T-2 ](b) [ ML-1T-2 ](c) [ MLT-2 ](d) [ ML2T-3 ]2. If the mag...

Cutting the lens in different shapes

CUTTING THE LENSAlthough lens can be cut in random ways and hence its properties will change accordingly, but, here properties of lens have been summarized when it is cut symmetrically along optica...

Circular Motion in action(Bending of cycliist, Circular Turn, Banking of Road)

Surface Tension

SURFACE TENSION The property of a liquid by virtue of which its free surface behaves like a stretched membrane and supports, comparatively heavier objects placed over it i...

Conical Pendulum