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

We have 360°=2pie 1°=2pie/360 1°=pie/180 which equals to 1.745×10^-2 1°=60' =1.745×10^-2rad 1'=2.91×10^-4 similarly 1'=60" 1"=4.85×10^-6 radians For more info check ncert book page no.19 Example no.2.1

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Sami Mansoori 5 years, 8 months ago

Yghbhbhbbbnnnnhnnnnnnnnnnnnnnnmmmmmmmm

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Can a body have constant speed with varying velocity?

Posted by Ritika Niwas 6 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Aditya Narayan Singh 6 years, 5 months ago

Yes, # change in velocity means change in magnitude as well as in direction, the given condition is possible when a body travels in circular path

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Aditya Chauhan 6 years, 5 months ago

When body moves in circular path with constant speed but its direction keep changing and hence velocity keep changing

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Aditya Chauhan 6 years, 5 months ago

Yes

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if p represents radiation pressure, c represents speed of light and q represents radiation energy striking a unit area per second .then non zero integers x,y & z such thatp^xQ^yc^z is dimension less are?

Posted by Deepak Shukla 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

To measure the diameter of a thin wire using screw gauge

Posted by Rahi Attri 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Find the differentiation of 2(xsquare-1)/(xsquare+x+1)square

Posted by Sanjay Gupta 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

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Derivation of all units given at the last of book

Posted by Umesh Pilaniya 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

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A stone is thrown with a velocity of 19.6 metre per second at an angle of 30 above horizontal from the top of building 14.7 metre height find the time after which the stone strike the ground and the distance of the landing point of the stone from the building and the velocity with which the stone its diagram and the maximum height attained by the stone above the ground take G is equals to 9.8 metre per second square

Posted by Gaming Boy 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

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Convert an energy of one joule into ergs

Posted by Saniya Shaikh 6 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Shivam Tripathi 6 years, 5 months ago

1 j = ? erg X U = x u X [ M1 L1^2 T1^-2 ] = x [ M2 L2^2 T2^-2 ] x = 1[ M1 L1^2 T1^-2/ M2 L2^2 T2^-2 ] x = [ M1 / M2 ] [ L1 / L2 ]^2 [ T1 / T2 ]^-2 x =[10^3/1] [10^2/1]^2 [1/1]^-2 10^3 × 10^4 = 10^7

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Mukul Goel 6 years, 5 months ago

Its very easy

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Is a vector necessarily changed if it rotated through an angle

Posted by Abhishek Pal Pal 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Abhinay Verma 6 years, 5 months ago

Yes the vector will be necessarily changed if it is rotated on an angle because vectors are those quantities which are dependent on the direction as well

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Questions on scalar product

Posted by Pramod Sharma 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Charu Sharma 6 years, 5 months ago

Answer of scalar product don't include directions

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what is the unit of Force in CGS system??

Posted by Aswin Lekshmanan 6 years, 5 months ago

CBSE > Class 11 > Physics

5 answers

Diya Singla 6 years, 5 months ago

Dyne

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Ashish Sah 6 years, 5 months ago

Dyne

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Priyansh Goyal 6 years, 5 months ago

Dyne

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Avantika Tayal 6 years, 5 months ago

Dyne.

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Avantika Tayal 6 years, 5 months ago

Dynr

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V2-u2=

Posted by Muhammad Imamsha Noushad 6 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Ashish Sah 6 years, 5 months ago

2as

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Abhilasha Rajput 6 years, 5 months ago

2as

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Please answer my question please please please please please

Posted by Saroj Bala 6 years, 5 months ago

CBSE > Class 11 > Physics

4 answers

Charu Sharma 6 years, 5 months ago

First ask the question

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Zubaida Khatoon 6 years, 5 months ago

Tell me the question i will help uu

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Mahi ✌?? 6 years, 5 months ago

Which question

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Aehtesham Ansari 6 years, 5 months ago

Yes

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If a cap minus b cap is equals to root 2 then calculate the value of a cap + root 3 bcap

Posted by Saroj Bala 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Aditya Chauhan 6 years, 5 months ago

Was you asking for this quetion

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If a vector is equals to 3 ICAP + 2 J cap and b vector is equals to two ICAP + 3 J cap - K cap then find a unit vector along a vector minus b vector

Posted by Saroj Bala 6 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

derive the formula for electric current when it depends upon area of cross section, drift velocity of the electron and charge on the electron

Posted by Anne Paul 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Ashish Sah 6 years, 5 months ago

I = VA/rho × L

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Difference between speen and velocity

Posted by Suraiya Naaz 6 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Yogita Ingle 6 years, 5 months ago

Sl. No.	Differentiating Property	Velocity	Speed
1	Definition	Velocity can be defined as the rate at which an object changes position in a certain direction.	The rate at which an object covers a certain distance is known as speed.
2	Type of quantity	Vector quantity	Scalar quantity
3	Magnitude	Velocity can be zero, negative, or positive.	Speed can never be negative or zero.
4	Change of direction	The velocity of the object changes with the change in direction, therefore the object must follow one direction.	The average speed will continue to count even if the object change direction.
5	Change with time	Velocity can decrease with time. For a moving object, it can be 0.	Speed never decreases with time. For a moving object, it is never 0.
6	Interrelation	An object may possess different velocities but the same speed.	Speed may or may not be equal to velocity.
7	Unit (SI)	Velocity is measured in m/s	Speed is measured in m/s