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What do you mean by measurement explain with example

Posted by Arpan Tomer 7 years, 1 month ago

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What is the moment of inertia of a solid sphere of radius R about one of it's diameter. If moment of inertia about the parallel tangent is I. Also, state the theorem of perpendicular axes.

Posted by Arpit Tiwari 7 years, 1 month ago

CBSE > Class 11 > Physics

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Veena Singh☺️? 7 years, 1 month ago

The moment of inertia of a plane lamina about an axis perpendicular to its plane is equal to the sum of the moment of inertia of the lamina about any two mutually perpendicular axes in its own plane and intersecting each other at the point where the perpendicular axis passes through the lamina.

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Steps in working of a nuclear power plant?

Posted by Chibom Kamcham 7 years, 1 month ago

CBSE > Class 11 > Physics

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Elastic energy

Posted by Karan Gupta 7 years, 1 month ago

CBSE > Class 11 > Physics

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Explain the second and third mode of vibration in a stretched string with necessary diagram

Posted by Abhishek Sahu 7 years, 1 month ago

CBSE > Class 11 > Physics

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What is forced oscillation

Posted by Ajith Ajay 7 years, 1 month ago

CBSE > Class 11 > Physics

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Yogita Ingle 7 years, 1 month ago

Oscillations of any object with a frequency different from its natural frequency under a periodic external force are called forced oscillations.

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A partical is exeecuting shm with time period t. Starting from mean position, time taken by it to complete 5/8 oscillations is

Posted by Anmol Kumar 7 years, 1 month ago

CBSE > Class 11 > Physics

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Can a collision takes place without the particle being in contact?

Posted by Kapil Kumar 7 years, 1 month ago

CBSE > Class 11 > Physics

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Khushi Jain 7 years, 1 month ago

Yes. Collision does not only mean physical contact but change in direction of motion of body by the influence of another body. Repulsion of positively charged particle by another positively charged particle withiout any physical contact is also collision.

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Who was the inventor of gama???

Posted by Tripti Shah 7 years, 1 month ago

CBSE > Class 11 > Physics

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Yogita Ingle 7 years, 1 month ago

Gamma radiation or gamma ray is an extremely high-frequency radioactive radiation consisting of high-energy photons. It was first discovered by a French chemist and physicist, Paul Villard in 1900. It was named gamma ray by Ernest Rutherford in 1903.

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Pratheeksha Pkumar 7 years, 1 month ago

PAUL VILLARD - gamma radiation DANIEL BERNOULLI - gamma (mathematics )

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Show that a central force is conservative

Posted by Sumayya Khan 7 years, 1 month ago

CBSE > Class 11 > Physics

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A road of length 2 metre and mass 5 kg is lying on the ground what is the work done required to lift it in vertical position?

Posted by Tushar Tyagi 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Karan Rajawat 7 years, 1 month ago

Work done is equal to force x displacement

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Komal Mehta 7 years, 1 month ago

Sorry 100 if value of gravity is 10

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Komal Mehta 7 years, 1 month ago

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Excess pressure exerted by liquid drop liguid bubble and soap bubble .

Posted by Riya Dhall 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Komal Mehta 7 years, 1 month ago

Excess pressure exerted by liquid drop is 2s/r and soap bubble is 4s/r

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by what percent kinetic energy of a body increase if it's momentum is 200 percent

Posted by Azam Khan 7 years, 1 month ago

CBSE > Class 11 > Physics

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Lab manual ??

Posted by Pranshu Kumar 7 years, 1 month ago

CBSE > Class 11 > Physics

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Absolute zero of temperature in Celsius scale?

Posted by Shrey Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Komal Mehta 7 years, 1 month ago

-273.5 kelvin

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Sahil Sharma 7 years, 1 month ago

- 273* celcius

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P to the power (-2) * v to the power (-3) then PV to the power (3 divide by 2) How it is please explain

Posted by Djd Shs 7 years, 1 month ago

CBSE > Class 11 > Physics

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A bullet of mass 0.04kg moving with a speed of 90 m s-1 enters a heavy wooden block and is stoped after a distance of 60 cm . What is the average resistive force exerted by the block on the bullet?

Posted by Awadhesh Chaudhary 7 years, 1 month ago

CBSE > Class 11 > Physics

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So that the convex lens produces N times magnified image when the object distance from the lens have magnitude F+F/N,F-F/N. Where F is the magnitude of focal length of the lens

Posted by Pushpa Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics

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What is the kinetic interpretation of tempereture

Posted by Viji Madhu 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Tamanna? Dhull 7 years, 1 month ago

From the kinetic theory of gases, average energy of a gas molecule is given by 1/2mv*2 =3/2kT Or. 1/2mv*2 directly propotional T Thus,average kinetic energy of a gas molecule is directly propotional to the absolute temperature of the gas If T=0,then 1/2mv*2=0 Therefore ,absolute zero is that temperature at which the molecular motion stops.

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What is the kinrtic interpretation of temperature

Posted by Viji Madhu 7 years, 1 month ago

CBSE > Class 11 > Physics

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Important topics from thermodynamics and wave s

Posted by Littleshine Aaaru?? 7 years, 1 month ago

CBSE > Class 11 > Physics

5 answers

Komal Mehta 7 years, 1 month ago

In thermodynamis working of refrigerator and its cofficient of performance and heat engine and second law of thermodynamics and limitations of first law of thermodynamics

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Komal Mehta 7 years, 1 month ago

Factors affecting the speed of sound also most important

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Ayushi Ayushi 7 years, 1 month ago

Chapter – Thermodynamics Important Topics: 1. Zeroth Law of Thermodynamics 2. First Law of Thermodynamics 3. Heat Engines 4. Second Law of Thermodynamics 5. Carnot .......... ...................................................................... .................. Chapter – Waves 1. Longitudinal and Transverse Waves 2. Displacement relation in Longitudinal Waves 3. Characteristics of Longitudinal and Transverse Waves 4. Principle of Superposition 5. Standing Waves 6. Beats 7. Dooplers Effect

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Tamanna? Dhull 7 years, 1 month ago

All laws of thermodynamics,limitation of first law, Work done in adiabatic and isothermal process, Heat engine ,refrigerator Waves Difference b/w transverse and longitudinal wave Wave function Formation of beats ?I think this help you

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Littleshine Aaaru?? 7 years, 1 month ago

Plzz help....tmrw is my exam

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what is acceleration of a block and the trolley system shown in the figure if the coefficient of kinetic friction between the trolley and surface is 0.04 what is attention of the string neglect the mass of string

Posted by Harsh Chhabra 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Shatayu Ganvir 7 years, 1 month ago

Figure

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Bernoli theorum

Posted by Harman Jassarh 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Littleshine Aaaru?? 7 years, 1 month ago

It states that for an incompressible non viscous fluid, in streamlined flow,Sum of pressure energy, kinetic energy, potential energy is constant along a streamline

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Ayushi Ayushi 7 years, 1 month ago

Bernoullis theorem is like the application of 'Law of conservation of energy' for fluids. It basically reflects the fact that the sum of all the energies like pressure energy, kinetic energy per volume and potential energy per volume is equal at the inlet and an outlet of a fluid flow.

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State work energy Theorem and prove it for vairable force

Posted by Sagar Patel 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Akanksha Kumari? 7 years, 1 month ago

Total work done = change in kinetic energy

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Derive expression for projectile,s formula

Posted by Hp .Meena 7 years, 1 month ago

CBSE > Class 11 > Physics

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Momentum is a scaler or vector

Posted by Priyam Dhiman 7 years, 1 month ago

CBSE > Class 11 > Physics

4 answers

Harshi Rajput 7 years, 1 month ago

Vector because p=mv where v is a vector qty.

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Pragati Gola 7 years, 1 month ago

Vector

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Pankaj Pandey 7 years, 1 month ago

vector

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Shivam Chauhan 7 years, 1 month ago

Scalar

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What is mean free path for gas and what are the factors on which it depend

Posted by Makhdum Alam 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ayushi Ayushi 7 years, 1 month ago

free path the distance traveled by a gas molecule between two successive collisions is known as free path ...and The factors on which the mean free path (λ) of a gas molecule depends are: (i) Diameter of the molecule: begin mathsize 14px style straight lambda proportional to 1 over straight d squared end style (ii) Number of gas molecules per unit volume: begin mathsize 14px style straight lambda proportional to 1 over straight n end style (iii) It depends indirectly on factors like temperature, pressure and Boltzmann constant.

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Electric field and magnetic field has no any colour then why we see all seven colour ??

Posted by Aditi Priya 7 years, 1 month ago

CBSE > Class 11 > Physics