The reverse of LED is______?

Related Mcqs:

1. In cricket when a bowler produce reverse swing the ball will move towards______________?

   A.The shinning side of the ball
   B. Rough side
   C. The seam of the ball
   D. Goes straight

2. Reverse process of photoelectric effect is_______________?

   A. pair production
   B. Compton effect
   C. annihilation of matter
   D. X-rays production

3. Which of the following is reverse process of composition of vectors?

   A. Addition of vectors
   B. Subtraction of vectors
   C. Multiplication of vectors
   D. Resolution of vectors

   Submitted by: Zahid Jagirani

4. Physics is one of the branches of___________?

   A. Physical sciences
   B. Biological sciences
   C. Social science
   D. Life sciences branch

5. When collision between the bodies in a system is inelastic in nature then for system ____________________?

   A. momentum changes but K.E remain conserve
   B. K.E changes but momentum remain conserve
   C. both momentum and K.E changes
   D. both momentum and K.E remain conserve

6. On loading the prong of a tuning form with wax its frequency____________________?

   A. increases
   B. decreases
   C. remains unchanged
   D. may increase or decrease

7. When same current passes for same time through a thick and thin wire_________________?

   A. more heat is produced in thick wire
   B. more heat is produced in thin wire
   C. no heat is produced in wire
   D. less heat is produced in thick wire

8. In the shadow of a ball the central portion appears bright that happens due to_________________?

   A. Interference
   B. Diffraction
   C. Polarization
   D. Refraction

9. If moon radius is 1600 km and g on its surface is 1.6 ms-2 then the escape velocity on the moon is ___________________?

   A. 1600 ms-1
   B. 50.6 ms-1
   C. 71.6 ms-1
   D. 2263ms-1

10. Which of the following group of forces can produce equilibrium?

    A. 12N, 5N, 20N
    B. 4N ,2N, 10N
    C. 10N, 18N
    D. 12N, 5N, 15N

    Submitted by: Zahid Jagirani