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

S=d/t Similarly wavelenght is also a distance so we can write V=lamda÷time SimilarLy V=Lamda × 1÷ Time As we know 1 ÷ t is frequency So we can write V= lamda× frequency

1Thank You

Anurag Yadav 8 years, 3 months ago

Wavelength=velocity /frequency

0Thank You

ANSWER

In Boyle's law pressure is external or internal.

Posted by Pawan Yadav 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Pawan Yadav 8 years, 3 months ago

Pressure is internal means pressure of gas.

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ANSWER

what is electricity

Posted by Payal Sriwastava 8 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Lisa Bisoyi 8 years, 3 months ago

Electricity means flow of electrons from negative terminal to positive terminal and creating a flow of current opposite to their path

1Thank You

Digvijay More 8 years, 3 months ago

Electricity means flow of charges

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ANSWER

2^1.4=2.61 How can we calculate exponent in decimals

Posted by Kanika Kotnala 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A lead bullet strike against a steel plate with velocity 200m/s if the impact is perfectly inelastic and the heat produce is equally shared between the bullet and the target then the rise in temperature of the bullet is.

Posted by Anubhav Dhingra 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If you thrown a stone upwards in moving train will it come back to your hands or not why

Posted by Singh Brar 8 years, 3 months ago

CBSE > Class 11 > Physics

4 answers

Anurag Yadav 8 years, 3 months ago

No ravi you are wrong what silly answer you have given(??

0Thank You

Ravi Pal 8 years, 3 months ago

it will not come in our hands because the train is continues moving, our position change as the train is moving but the stone is thrown upward in air its position don't change and fall back at same place& that time we travel some distances.

1Thank You

Anurag Yadav 8 years, 3 months ago

Definately it will come bacj to your hands

0Thank You

Ajesh Rana 8 years, 3 months ago

It depends on the speed of train

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ANSWER

If radius of earth is 6400km , what will be the weight of 1 quintal body if taken to the height of 1600km abovr the sea level ? ( g_- 10ms-2)

Posted by Ankit Sharma 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Ishita Tiwari 8 years, 3 months ago

62.72 kg, to be precise

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ANSWER

why dolphins moves up and down in sea ?

Posted by Siddharth Abhimanyu 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

A Z 8 years, 3 months ago

Motion is created by Dolphin's tail moving up and down in sea. Dolphins are different from fishes as fish moves sideways to swim while dolphins moves up and down due to the motion created by their tail.

5Thank You

ANSWER

name important discoveries of physics which have contributed a lot in development of biological sciences

Posted by Gaurav Agrawal 8 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

A Z 8 years, 3 months ago

Discovery of Cell,Systematic circulation, DNA, nutrients,chromosomes,etc.

1Thank You

A Z 8 years, 3 months ago

Invention of Electron microscope, thermometer,etc.

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ANSWER

Explain bamalleios therorem

Posted by Ankush Das 8 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Aditya Kumar 8 years, 3 months ago

Your ans is right ritika but sum of Pressure + K.e + P.e = constant, At total path energy per unit volume hona chaiyea.

0Thank You

Ritika Thakur 8 years, 3 months ago

It states that sum of pressure energy, kinetic enery and potential energy of an ideal fluid remains constant along a streamline or we can say Bernoulli's theorem is nothing but the conservation of energy.

0Thank You

A Z 8 years, 3 months ago

Bernoulli's theorem states that the pressure of given mass of an ideal gas is inversely proportional to its volume at a definite temperature.

2Thank You

ANSWER

Derive the ascent formula of capillary tube??

Posted by Sumit Jatav 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If velocity of particle is V^2= 180-16x m/sec ,then find acceleration

Posted by Sumit Jatav 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State newton's law of cooling

Posted by Kanika Kotnala 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is newton's law of cooling

Posted by Kanika Kotnala 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sumit Jatav 8 years, 3 months ago

Newton’s law of cooling describes the rate at which an exposed body changes temperature through radiation which is approximately proportional to the difference between the object’s temperature and its surroundings, provided the difference is small, i.e., The Newton’s law of cooling is given by, dT/dt = k(Tt – Ts) Where Tt = temperature at time t and Ts = temperature of the surrounding, k = constant. The Newton’s Law of Cooling Formula is expressed by T(t) = Ts + (T0 – Ts) e-Kt Where, t = time, T(t) = temperature of the given body at time t, Ts = surrounding temperature, To = initial temperature of the body, k = constant.

1Thank You

ANSWER

does class 11th syllabus comes in 12th

Posted by Manshu Kumari 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

why 2nd law of motion is called real law of motion

Posted by Shefali Pateriya 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is strass

Posted by Aakash Rana 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sumit Jatav 8 years, 3 months ago

The force on body acting per unit area

1Thank You

ANSWER

Define spring in parallel Combination.

Posted by Mohd Asad 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

three particles each of mass m placed on the vertex of a equilateral triangle the only force which exist between the particles is mutual gravitational force they move on a circular path under the influence of this mutial force find the velocity and time period of revolution

Posted by Aekesh Khatri 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State weather we can use the equation of kinamatics to find height attained by a body projected upward with any velocity

Posted by Deepak Maurya 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Find the area of circle in p-v graph in which on p axis values are from 1&2 and on the v axis it is from 1to. 3

Posted by Gyanesh Chaurasia 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Two objects are fired at angle a1 and a2 with horizontal with velocities u1 and u2. Their time of flight are so adjusted that both objects reach at the highest point at same instant. Find their relative velocities at this instant.

Posted by Shalini Dogra 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State and explain work energy principle

Posted by Khyati Tayal 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Abc Kamboz 8 years, 3 months ago

ACC. To work energy principle the work done is equal to the change in kinetic energy

0Thank You

ANSWER

How many light years make 1 par sec?

Posted by Khyati Tayal 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Derive stokes law

Posted by Nitish Gupta 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Nitish Gaur 8 years, 3 months ago

Tumhare physics vale sir se puch

1Thank You

ANSWER

Define centre of gravity

Posted by Seaban Seaban 8 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

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