CBSE > Class 11 > Physics | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

what is ploughing

Posted by Mohit Kumar 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Ayush Kumar 7 years, 5 months ago

The cultivation of a field is known as ploughing.

ANSWER

Explain the nature of the physical law

Posted by Sunil Jamaria 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

✏️ the frequency of vibration of a stretched string depends upon its length mass per unit length of the string and tension in the string obtain an expression for the frequency using dimensional analysis? ➡️➡️➡️ only hint no full ans only hint means tell me about tension and mass per unit length of the string .. ...........?????

Posted by ???? S.M. Sachin ???? 7 years, 5 months ago

CBSE > Class 11 > Physics

5 answers

Nancy Rajput 7 years, 5 months ago

you want solution

???? S.M. Sachin ???? 7 years, 5 months ago

Check it frequency, v = √T/ l(m/l )._______________T = tensions

???? S.M. Sachin ???? 7 years, 5 months ago

..Plz check my ans = √T/ l (m/l)

???? S.M. Sachin ???? 7 years, 5 months ago

⭐ ✏️

Nancy Rajput 7 years, 5 months ago

frequency =k/l root f/m

ANSWER

✏️ an accurate measurement may or may not be precise. justify. ????

Posted by ???? S.M. Sachin ???? 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

???? S.M. Sachin ???? 7 years, 5 months ago

? = ? ?????

Nancy Rajput 7 years, 5 months ago

Accuracy means how close the measured value is near to the true value and precision is minimum of digits in the measurments Ex: let actual; weight of the body is 100 N. value given by some one is 99 kg. and value given by some one is 98.999 kg then 99 kg is accurate value and 98.999 is precised value.

ANSWER

What is the dimension of frequecy

Posted by Isha Jaiswal 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Nancy Rajput 7 years, 5 months ago

hello mate, Frequency = number of vibrations/sec Dimensional Formula of Time = M0L0T1 Putting these values in above equation we get Dimensional Formula of Frequency = 1/ M0L0T1 = M0L0T-1 Hence, Dimensional Formula of Frequency = M0L0T-1 SI unit of Frequency is the hertz.

???? S.M. Sachin ???? 7 years, 5 months ago

Hello dear.....Ans. => we know that v = 1 / t Means t = [T] and v = frequency So, v = [T]^-1 ....... ....Life is _______

ANSWER

What is Acceleration? State SI unit

Posted by Aryan Chahal 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Ayush Kumar 7 years, 5 months ago

Change in velocity by time taken is known as accleration. S.I unit of accleration is N/s.s

Nancy Rajput 7 years, 5 months ago

change in velocity at respect to time is called acceleration. its SI unit is m/s^2

ANSWER

What is reference frame?

Posted by Aryan Chahal 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Nancy Rajput 7 years, 5 months ago

A reference point in physics is a point in space, regardless of the type of geometry that you are using that stays still and does not move. From this point the behaviour of an object moving through that space can be determined. In 3 dimensional space, the reference point is usually considered to be the zero point where all 3 axes are 0....hope it helps :) and thumbs up if ur satisfied plss :))

ANSWER

Two vectors are in the ratio of 3:5 and their resultant is 28. Incline at an angle of 60 degree . Calculate the ratio . Chapter motion in plane ...

Posted by Vanisha Meena 7 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Vanisha Meena 7 years, 5 months ago

The value of vactors are 12 and 16

???? S.M. Sachin ???? 7 years, 5 months ago

=> 28 ^2 = 3x^2 + 5x^2 + 5x × 3x cos60 ° => 784 = 9x^2 + 25x^2 + 15x^2 / 2 => 1568 = 18x^2 + 50 x ^2 + 15 x^2 => 1568 = 83x^2 =>x ^2 = 1568 / 83 ????????????

???? S.M. Sachin ???? 7 years, 5 months ago

...Formula based question hai khud karo.....Hamhe kun kast de rahe ho... => 28^2 = 3x^2 + 5x^2 + cos 60° Solve it........ ??????????????

ANSWER

A particle is fired with speed u making angle theta with horizontal.Its potential energy at highest point is

Posted by Shakshi Kumari 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Hello friends how are you.... ???????? Chapter 1st Please give me some ques. With sol. Please

Posted by ???? S.M. Sachin ???? 7 years, 5 months ago

CBSE > Class 11 > Physics

4 answers

???? S.M. Sachin ???? 7 years, 5 months ago

....❎❎❎❎❎❎❎

Nancy Rajput 7 years, 5 months ago

okkkk

???? S.M. Sachin ???? 7 years, 5 months ago

......Actually mei aise hi pooch raha tha.............Thanks poochne ke liye....??⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐

Nancy Rajput 7 years, 5 months ago

of which subject solution you want

ANSWER

Two trains A and B which are 100 km apart are travelling towards each other on different tracks with initially speed of 50 km/h for both .The train A accelerates at 20 km/h^2 and train B retards at the rate 20 km/hr^2. Find the distance covered by train A when they cross each other.

Posted by Ritam Sett 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Nancy Rajput 7 years, 5 months ago

its 60 km

Akshit Verma 7 years, 5 months ago

125 km/hr

ANSWER

Oleic acid

Posted by Naman Jain 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Bhoomi Verma 7 years, 5 months ago

Fatty acid that occur naturally in various animal, vegetable fats and oils

ANSWER

What is deminsonalless constant

Posted by Mahira Sharma 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is fundamental quantities

Posted by Benjamin Gogoi 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If vector a + vector b=vector c and a+ b = c then find the angle between vector a and b

Posted by Rudra Gupta 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Rudra Gupta 7 years, 5 months ago

Wrong answer

Shivam Tiwari 7 years, 5 months ago

Thitha

ANSWER

Solve sinx/1+cosx by differentiation

Posted by Muskan Bhavsar 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Nancy Rajput 7 years, 5 months ago

here its not possible its too much longer answer

ANSWER

Can there be two vectors where the resultant is equal to either of them ?

Posted by Ritu Ranu 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Vishwajeet Kumar 7 years, 5 months ago

In that case , the two vectors and their resultant will for a triangle with two side equal(resultant and one of the two vectors).

Vishwajeet Kumar 7 years, 5 months ago

Yes

ANSWER

Can the velocity of a particle vary even if its speed is constant ? Give example.

Posted by Ritu Ranu 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Vishwajeet Kumar 7 years, 5 months ago

Yes . The movement of earth around the sun. Its speed is constant but velocity is changing every moment due to the change in direction of the movemeg

ANSWER

Can an object have (1) a uniform speed , but still have acceleration and (2) a zero velocity , but still have acceleration ? Give examples in each case.

Posted by Ritu Ranu 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Ashutosh Sharma 7 years, 5 months ago

Yes the movement of earth around thesun

Vishwajeet Kumar 7 years, 5 months ago

1. Yes.the movement of earth around the sun.

ANSWER

koi lakhimpur ka hai

Posted by Tejus Di 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Vanisha Meena 7 years, 5 months ago

No

ANSWER

B1, B2, B3 are three balloons ascending with velocity V, 2V , 3V respectively. If a bomb is dropped from each when they are at a same height, then- bomb from B1 reaches ground first. bomb from B2 reaches ground first. bomb from B3 reaches ground first. they reach the ground simultaneously. answer is A. how?

Posted by Anil Kumar 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Rushil P 4 years, 4 months ago

B1, B2, B3 are three balloons ascending with velocity V, 2V , 3V respectively. If a bomb is dropped from each when they are at a same height, then- bomb from B1 reaches ground first. bomb from B2 reaches ground first. bomb from B3 reaches ground first. they reach the ground simultaneously. answer is A. how?

ANSWER

Please speak hindi in video

Posted by Amit Prasad 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Let vector A and vector B be the two vectors of magnitude 10 unit each.If they are inclined to the x-axis at angle 30dgree and 60degree respectively,find the resultant.

Posted by Akash Arya 7 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Aryan Singh 7 years, 5 months ago

First you say correct angles

Nancy Rajput 7 years, 5 months ago

its 45°

Akash Arya 7 years, 5 months ago

I don't know i want answer

ANSWER

an optical instrument that can measure length to within a wavelength of light? pls anyone explain this in detail

Posted by Nancy Rajput 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A normal human eye can see an object making an angle of 1.8° at the eye. What is approximate height of object which can be seen by an eye placed at a distance of 1m from the eye.

Posted by Anshul Choudhary 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Please speak in hindi in video

Posted by Yogesh Kaushik 7 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Vishal Pathak 7 years, 5 months ago

I think u r new here.. Right??

Vishal Pathak 7 years, 5 months ago

Yes.. Many r there on the u tube

Nancy Rajput 7 years, 5 months ago

if you want hindi speaking video take help of youtube

ANSWER

The frequency of n a streched string depend on length of the vibrating string tension in the string f and mass per unit lenght m show that n=1/l

Posted by Hema Priya 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Dimensional formula for SOLAR CONSTANT

Posted by Vishal Pathak 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Vishal Pathak 7 years, 5 months ago

Thanks

Nancy Rajput 7 years, 5 months ago

[Energy/(Area x Time)] = [ML2T −2/(L2 T)] = [MT−3]

ANSWER

How to convert thr SI unit of density and power into CGS unit of those quantities

Posted by Savant Sajan 5 years, 8 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is organic physics

Posted by Rakesh Naik 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Page 347 of 557

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App