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Can i get 90 percent marks in physics by only doing ncert in cbse board 12 class

Posted by Vipin Kumar 1 year, 2 months ago

4 answers

Mohammad Adil 1 year, 1 month ago

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Mohammad Adil 1 year, 1 month ago

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Mohammad Adil 1 year, 1 month ago

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Sanjana Sahni 1 year, 2 months ago

No you need to solve only ncert question and pyq and also, learn formulas, numericals, derivation.

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A free proton & a free electron are placed a uniform field which of the two experience greater force & acceleration

Posted by Ananya Sahu 1 year, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Gravity

Posted by Willie Shakesphere 1 year, 2 months ago

CBSE > Class 12 > Physics

2 answers

Mohammad Adil 1 year, 1 month ago

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Mohammad Adil 1 year, 1 month ago

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ANSWER

Identify the α,β ,γ traces of

Posted by Harish N.M 1 year, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Elertric dipole in uniform electric field

Posted by Payal Payal 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Krish Sapehiya 1 year, 2 months ago

Consider an electric dipole having charge q,-q When these charge placed in electrical field they will be expecting electricity field Net electric dipole is given by F=F1+F2 F=qE-qE F=0 Net electric force on electric dipole uniform electric field is 0

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Calculate resultant force on 7 microcoulomb on equilateral triangle

Posted by Janhavi Gupta 1 year, 2 months ago

CBSE > Class 12 > Physics

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Q:- tan-¹x + tan-¹ y = ?

Posted by The Atul Avil Stark 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Akshara Srivastava 1 year, 2 months ago

tan-¹(x+y/1-xy)

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ANSWER

Find the electric flux through a square face of side 10cm in yz plane if the electric field is E =300i^NC¹

Posted by Santosini Pradhan 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Charlette Ellis 1 year, 2 months ago

In y-z plane, theta=0° Flux=ES Cos0° Flux=300×0.01×1 Flux=3 Nm^2/C [Side of square =10cm =0.1 m Area of square = (side)^2 =0.01m^2 ]

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Draw electric field lines for two negative charges infront of each other

Posted by Sanjana Mehra 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Calculate the field due to a electric dipole of length 10cm having the charges 1micro coulomb at an equatorial point 12cm from the center of the dipole

Posted by Remy Roy 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Pawan Kumar 1 year, 1 month ago

E=k*p/x^3 E=9×10^9 × 10^(-6) ×0.05 /(0.12)^3 E=45×10^7 /144*12

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5 8 4 6 Find force on -q and q 2 3 4 Fnd force on -q and 2q Answers 27Kq" 4r SKa (-) 29 294 For leftmost. F = h()& For middle, F = 9r4 189/86 7. Find the valuc of r such that the forcc cxperiencc by the charge Q will be maximum? Ir0= 30°, q, = -10-6C, q2=3X 10C, q3 = -2 x 10C, r2 = 15 cm, ry3= net force on charge qi? For -q. F -(& For 2q. F 5. Find the ratio of magnitude of force 3Kq 20 2r2 ( 2.9 27 6. For q. F 7. r= 2.1 8. 2.64 N F. VSKq' 10 cm Find & For -q. F VIDYAPATH BY: ABHIMANYU KUMAR (IWT BOMBAY),76942oes

Posted by Sonal Sharma 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Question 1)A ball is dropped from a height of 20 m above the surface of the water in a lake. The refractive index of water is 4/3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is 12.8 m above the water surface, the fish sees the speed of the ball as g = 10m/s2. (A) 9 m/s (B) 12 m/s (C) 16 m/s (D) 21.33 m/s Answer with Explanation plz

Posted by Devnandani Sen 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Automobile ignition failure occurs in damp weather. Explain why .

Posted by Diksha Sharma 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is pseudo force

Posted by Ashish Ranjan 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Abhishek Yadav 1 year, 3 months ago

Pseudo force is a kind of force which causes no change to the system but for instance it is being applied ...

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What is the net force on each charge if q , q and -q

Posted by Sunem Dungdung 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Consider the charge q ,q and -q placed at the vertices of an equilateral triangle as shown in fig . what is the force on each charge

Posted by Sunem Dungdung 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aashish Tiwari 1 year, 3 months ago

Kq^2√3/r^2

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ANSWER

A comb run through one's dry hair attracts small bits of paper why? What happens if the hair is wet or if it is a rainy day?

Posted by Rakshit Singh 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A glass rod held in hand can be charged by rubbing it with silk but a copper rod cannot be charged like this. Why?

Posted by Rakshit Singh 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Ordinary rubber is an insulator. But the special rubber tyres of aircrafts are made slightly conducting why is it necessary?

Posted by Rakshit Singh 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

There are two charges that is 6.5×10*-7 C placed in a water find the force between two charges placed in water

Posted by Lakshmi Lavanya 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Three point charge + q each are keep at its vertices of an equilateral triangle of side l. Determine the magnitude and sign of charge to be keep at its centroid so that the charge at vertices remain in equilibrium?

Posted by Sanchita Kanojiya 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

3 charge of -√2 mc,2√2 mc, -√2 mc are arranged on straight line show in fig. Calculate electric field intensity due to all the 3 charges

Posted by Lokesh Gurjar 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

The fundamental frequency of a closed organ pipe is 'n'.its length is doubled and radius is halved.its frequency will become nearly

Posted by Adithya . 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Electric field lines contract lengthwise it shows

Posted by Shreyanshi Keshari 1 year, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Consider three charges q1 q2 Q3 equal to q at the word this is of equilateral triangle of side l what is the force on a charge q placed at the Central of the triangle

Posted by Sreeparvathy Ns 1 year, 4 months ago

CBSE > Class 12 > Physics

1 answers

Tarun Singh 1 year, 4 months ago

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ANSWER

Potential energy of system of four charge

Posted by Shivam Pandey 1 year, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A thin plastic rod is bent into a circular ring of radius R. It is uniformly charged with charge density lamda. The magnitude of the electric field at its centre is

Posted by Levi Ackerman 1 year, 4 months ago

CBSE > Class 12 > Physics

2 answers

Aman Bamal 9 months, 1 week ago

Lambda /2πr efsinote

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Saina Aska 1 year, 4 months ago

Don't post personal information, mobile numbers and other details.
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Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

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ANSWER

Draw the equipotential surface corresponding to a uniform electric filed in Z-direction

Posted by Durga Chettri 1 year, 4 months ago

CBSE > Class 12 > Physics