The standard form of the quadratic equation is:
A. y = a(x – h)2 + k
B. y = a(x + h)2 + k
C. y = x2 + bx + c
D. y = x2 + k
The laws of reflection hold good for _________?
A. Plane mirror only
B. Concave mirror only
C. Convex mirror only
D. All mirrors irrespective of their shape
Which of the following is NOT true about light?
A. It is a form of electromagnetic radiation.
B. It travels at the fastest speed in vacuum.
C. It can be polarized.
D. It is made up of tiny particles called photons.
Echinoderms live in which water?
A. Freshwater
B. Terrestrial
C. Marine
D. Both freshwater and terrestrial
What is the function of the water vascular system in echinoderms?
A. Circulation of blood
B. Movement and feeding
C. Excretion
D. Respiration
What is the unit of measurement for sound intensity?
A. Decibel (dB)
B. Hertz (Hz)
C. Watt (W)
D. Joule (J)
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