Everyday Science MCQs

Correct answer C. Infinite

Correct answer B. 2 kWh

Correct answer D. Heat energy into electrical energy

Correct answer A. Joule effect

Correct answer D. A very good conductor

Correct answer D. Free electrons

Correct answer A. 7 Hz

Correct answer D. ML⁻¹T⁻²

Correct answer D. Both even and odd harmonics are present

Correct answer B. Both sound and light waves

Correct answer D. Constructive and destructive interference

Correct answer A. Beats

Correct answer C. 2000 to 4000 Hz

Correct answer A. It decreases

Correct answer C. 0.61 m s⁻¹

Correct answer D. They need a material medium to propagate

Correct answer B. It increases

Correct answer D. Remains unchanged

Correct answer D. Mechanical waves

Correct answer C. Doppler effect