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Showing posts with label JEE. Show all posts
Showing posts with label JEE. Show all posts

# Class 11 - Physics - Mechanical Properties of Solids and Fluids - Important Points to Remember

1. Elasticity:

It is the property of a material by which it tries to regain its original configuration after the removal of the deforming force applied to it. Example of perfectly elastic solid, quartz, phosphor, bronze.

2. Plasticity:

It is the property of a body by virtue of which it does not regain its original shape and size even after the removal deforming force, is called plasticity.  # THEOREMS ON DIFFERENTIATION

CBSE Class 11 - Mathematics - Limits and Derivatives Part-9

You have learnt about finding derivatives using the first principle in part-7 and part-8. Let us proceed further. Here is a summary of theorems on differentiation.  # PHYSICS MCQs FOR NEET - IIT JEE EXAMINATION (SET-6)

Topics Covered: Work, Power and Energy

Q1: A bullet is fired from a rifle, If the rifle recoils freely, then the kinetic energy of the rifle will be:

(a) same as that of bullet

(b) more than that of bullet

(c) less than that of bullet

(d) none of these

Q2: A body of mass 2 kg, initially at rest, is acted upon simultaneously by two forces, one of 4N and the other of 3N, acting at right angles to each other. The work done by the body after the 20s is

(a) 500 J

(b) 1250 J

(c) 2500 J

(d) 5000 J  # Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9

Salts/Compounds     Colour

1. Potassium dichromate, K₂Cr₂O₇ Orange

2. Potassium permanganate, KMnO₄ Violet

3. Ferric tetra-oxide, Fe₃O₄ Black

4. Ferrous sulphate, FeSO₄.7H₂O Green

5. Ferric sulphate, Fe₂(SO₄)₃ Yellow

6. Ferric hydroxide, Fe(OH)₂ Green  # Common Chemical Compounds – Names and Formulas

(General Science)

In competition exams like NEET, JEE, NTSE etc. generally, the chemical names are asked in these exams.

The list of all the important Names and Formulas of Common Chemical Compounds is given here: weblink  # CBSE Class 11 - Chemistry - Chapter - Structure Of Atom - Important Points To Remember

Structure of Atom

1. Discovery of Electron — Discharge Tube Experiment:

In 1879, William Crooks studied the conduction of electricity through gases at low pressure. He performed the experiment in a discharge tube which is a cylindrical hard glass tube about 60 cm. in length.

Mass of electron = 9.109534 x 10⁻³¹ kg

Charge on a electron = (-) 1.602 x 10⁻¹⁹ C

2. Properties of Cathode Rays

(i) Cathode rays travel in straight line.

(ii) Cathode rays start from cathode and move towards the anode.  # Physicists and Their Major Contributions

For Class 11/Class 12 Physics - NEET - JEE

Physics deals with the study of the basic laws of nature and their manifestation in different phenomena. The basic laws of physics are universal and are applied in widely different contexts and conditions. Physics is a basic discipline in the category of natural sciences which also includes other disciplines like Chemistry and Biology. The word physics comes from a Greek word meaning nature.

Here is a partial list of Physicists and their contributions in various fields of physics.  # JEE NEET PHYSICS MCQs (Set-5)

Topics Covered: Laws of Motion, Circular Motion

Q1: In a tug-of-war match, one team is pulling with a force of 500 N. If they are exactly balanced by the other team, then the tension in the rope is?

(a) 0
(b) 250 N
(c) 500 N
(d) 1000 N

Q2: A particle of mass 0.3 kg is subjected to a force F = kx with k= 15 N/m. What will be its initial acceleration if it is released from a point 20 cm away from the origin.

(a) 3 m/s²
(b) 15 m/s²
(c) 5m/s²
(d) 10 m/s²  # JEE NEET PHYSICS MCQs (Set-4)

Topics Covered: Vector Algebra, Motion in a Plane

Q1: If θ is the angle between two vectors, then the resultant vector is maximum when the value of θ is

(a) 0°
(b) 90°
(c) 180°
(d) Same in all cases.

Q2: The change in a vector may occur due to

(a) Rotation of the frame of reference
(b) Translation of frame of reference
(c) Rotation of vector
(d) Both a and b

Q3: Acceleration of a particle under projectile motion at the highest point of its trajectory is :

(a) g
(b) zero
(c) less than g
(d) dependent upon projection velocity  ## PHYSICS MCQs (Set-3)

FOR JEE NEET Med/Engineering Entrance Examinations

Topics Covered: Kinematics (Motion in a Straight Line)

Q1: A particle starts from rest with uniform acceleration 'a' Its velocity after 'n' second is 'v'. The displacement in last two seconds is:

(a) 2v(n-1)/n
(b) v(n-1)/n
(c) v(n+1)/n
(d) 2v(2n+1)/n

Q2: A body starts from origin and moves along x-axis such that at any instant velocity is v = 4t³ - 2t. The acceleration of the particle when is it is 2m away from the origin is:

(a) 14 m/s²
(b) 18 m/s²
(c) 22 m/s²
(d) 32 m/s²  ## JEE NEET PHYSICS MCQs (Set-2)

FOR NEET - IIT JEE and Other Engineering or premedical Entrance Examinations

Topics Covered: Units & Dimensions, Error in Measurement

Q1: Which of the following sets cannot enter into the list of fundamental quantities in any system of unit

(a) length, mass and velocity
(b) length, time and velocity
(c) mass, time and velocity
(d) length, time and mass

Q2: The base quantity among the following is:

(a) Speed
(b) Weight
(c) Length
(d) Area  ## PHYSICS MCQs  (SET-1)

FOR NEET - IIT JEE and Other Engineering or premedical Entrance Examinations

Q1: A neutron with velocity v strikes a stationary deuterium atom, its kinetic energy changes by a factor of

(a) 15/16
(b) 1/2
(c) 2/1
(d) 8/9

Q2: AM radio band has carrier frequency from 500 kHz to 1500 kHz. Assuming a fixed inductance in a simple LC circuit, what is  ratio of highest capacitance to lowest capacitance required to cover this frequency range?

(a) 3
(b) 6
(c) 9
(d) 12  ## Physics Quiz for NEET, AIPM and JEE

MCQs

Q1: Wavelength of a LASER beam can be used as a standard of

(a) Time
(b) Temperature
(c) Angle
(d) Length

Q2: A mercury barometer is enclosed in a tall glass cylinder. What happens to the level of mercury if air is slowly removed from the enclosure by a vacuum pump? The level

(c) remains unchanged
(d) suddenly falls to zero

Q3: Which of the following is not a thermodynamic function?

(a) enthalpy
(b) work done
(c) internal energy
(d) Gibb's energy  # Physics: Important Discoveries

No. Discovery Scientist Year
1. Proton Rutherford 1919
3. Atom John Dalton 1808
4. Atomic Structure Neil Bohr & Rutherford 1913  