A cup of milk is placed in a microwave oven. Tell which statements is false. (1) Milk will be heated up only. (2) Cup will remain cool. (3) Both cup and mild will get hot ?

Related Mcqs:

1. T.V sets and microwave ovens emit ___________________?

   A. X-rays B. α-rays C. β-rays D. γ-rays...

2. If the density of atoms remain same along any direction in a crystal is called__________________?

   A. Symmetry B. Homogeneity C. Isotropy D. Cleavage...

3. A fuse is placed in series with the circuit to protect against__________________?

   A. high power B. high voltage C. high current D. over heating...

4. A point source of light placed in a homogeneous medium gives rise to ___________________?

   A. a cylindrical wave front B. an elliptical wave front C. a spherical wave front D. a plane wave front...

5. A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?

   A. F=1/B B. F=1/Bsinθ C. F/0 D. F=1/Bcosθ...

6. If a diffraction grating is placed in the path of a light beam it reveals______________?

   A. Wave property B. Particle property C. Energy particle D. Electromagnetic wave property...

7. If an object is placed away from 2f of a converging lens then the image will be_______________?

   A. real and erect B. virtual and erect C. real and inverted D. virtual...

8. A convex lens of focal length f1 and a concave lens of focal length f2 are placed in contact. The focal length of the combination is_____________?

   A. f2 + f1 B. f2 – f1 C. f1f2/f2+f1 D. f1f2/f1-f2...

9. Two convex lenses of equal focal length f are placed in contact the resultant focal length of the combination is______________?

   A. zero B. focus C. 2 f D. f/2...

10. When two charges are placed in water then the Coulomb force between them reduces to _____________?

    A. 1/2 times B. 1/3 times C. 1/78 times D. 1/58 times Submitted by: M.Irfan...