The distance between a node and its adjacent antinode of a transverse wave is equal to?
half of the wavelength
the wavelength
thrice the wavelength
quarter of the wavelength
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements about the molecules of solids and liquids is correct? They both
have weak attraction.
have wide separations.
exhibit random motion.
exhibit vibratory motion.
Correct answer is D
No explanation has been provided for this answer.
Electric motor primarily converts?
electrical energy to chemical energy.
kinetic energy to potential energy
electrical energy to mechanical energy
electrical energy to heat energy.
Correct answer is C
An electric motor is an electrical machine that converts electrical energy into mechanical energy
A heat sensitive resistor made of a semiconductor is called?
thermometer
thermostat
thermistor
thermopile
Correct answer is C
Thermistors act as a passive component in a circuit. They are an accurate, cheap, and robust way to measure temperature.
Opening in the eye through which light passes to the retina is called the?
pupil
cornea
iris
optic nerve
Correct answer is A
The function of the pupil is clearly that of controlling the amount of light entering the eye, and hence the light reflex