MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
C. infra red radiation
Explanation
infra red radiation is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. isothermal
Explanation
isothermal is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. vibration take place in a direction perpendicular to the direction of propagation of light
Explanation
vibration take place in a direction perpendicular to the direction of propagation of light is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 300 watt
Explanation
300 watt is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Triode vacuum tube
Explanation
Triode vacuum tube is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. it has large eyes with orbs directed forward, giving it binocular sight
Explanation
Because of their eyes, an owl can see much better in the dark than we can. Owls have very large eyes which maximize light gathering in conditions of minimum light, thereby enabling them to see at night. The orbs of their eyes are directed forward, giving them binocular vision. They are able to see their prey in a three-dimensional manner. However, an owl’s eye cannot rotate.
Correct answer
D. Energy
Explanation
Energy is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Cadmium
Explanation
Cadmium is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. in front of the retina
Explanation
A concave lens is used to correct short-sightedness (myopia). In myopia, images are formed in front of the retina, resulting in a blurred image. This occurs when the eye is relatively too long or the refractive powers of the cornea and lens of the eye are relatively too strong.
Correct answer
A. all thickness nature and angle of incidence
Explanation
all thickness nature and angle of incidence is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.