The waves that require a material medium for their propagation are called__________________?
A. matter waves
B. electromagnetic waves
C. carrier waves
D. mechanical waves
A. matter waves
B. electromagnetic waves
C. carrier waves
D. mechanical waves
A. increases with increase in age
B. decreases with increase in age
C. neither increases nor decreases
D. becomes infinite after 60 years
A. rest
B. motion
C. velocity
D. force
A. 0.5
B. 0.2
C. 1
D. 2
A. It’s works equals the change in the kinetic energy of the particle.
B. It’s obeys Newton’s second law
C. It’s obeys Newton’s third law
D. It work depends on the end points of every motion, not on the path between.
A conservative force is a force with the property that the total work done in moving a particle between two points is independent of the path taken.
A. Milk
B. Water
C. Charcoal
D. Water
A. The switch
B. The light emitting diode
C. The photo diodes
D. Solar cells.