10th Class Physics Book: PTB Download
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Questions and Answers

What is the purpose of students bringing their own books to physics classes?

  • To avoid studying from the physics book
  • To make notes and benefit from illustrations (correct)
  • To share books with other students
  • To reduce the weight of their school bags

Why do students need to have the physics book for class 10 while studying in school?

  • Teachers use them to teach important derivations and topics (correct)
  • To increase the demand for books
  • To discourage students from studying physics
  • To create a shortage of books

What has ilmkidunya done to solve the problem of limited supply of books?

  • Uploaded all Matric and Intermediate books by Punjab curriculum and textbook Board (correct)
  • Stopped providing PDF downloads of books
  • Restricted access to physics books
  • Increased the price of books

What are some topics mentioned in the physics 10th class book that need to be studied by all students?

<p>Electromagnetic induction and Refraction (B)</p> Signup and view all the answers

Why are students unable to get their books according to the text?

<p>Due to limited supply of books and high demand (D)</p> Signup and view all the answers

What type of wave involves a pair of superimposed periodic waves traveling in opposite directions?

<p>Standing wave (C)</p> Signup and view all the answers

What type of wave involves stress and strain fields oscillating about a mechanical equilibrium?

<p>Mechanical wave (C)</p> Signup and view all the answers

Which equation describes a standing wave field of two opposite waves?

<p>$y(x, t) = A\text{sin}(kx - \text{wt}) + A\text{sin}(kx + \text{wt})$ (A)</p> Signup and view all the answers

Which type of wave involves coupling between the electric and magnetic fields according to Maxwell's equations?

<p>Electromagnetic wave (A)</p> Signup and view all the answers

What type of wave involves the entire waveform moving in one direction?

<p>Traveling wave (B)</p> Signup and view all the answers

What type of wave involves variations of the local pressure and particle motion that propagate through the medium?

<p>Electromagnetic wave (B)</p> Signup and view all the answers

In a standing wave, where does the amplitude of vibration have nulls?

<p>At positions where the wave amplitude appears smaller or even zero (B)</p> Signup and view all the answers

What type of wave involves stress and strain fields oscillating about a mechanical equilibrium?

<p>Mechanical wave (B)</p> Signup and view all the answers

Which equation describes a standing wave field of two opposite waves?

<p>$ ext{Wave equation}$ (C)</p> Signup and view all the answers

What type of wave involves the entire waveform moving in one direction?

<p>Traveling wave (A)</p> Signup and view all the answers

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