This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 46 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Discuss the applications of black body radiation in everyday life. A) Black body radiation is applied in clothing to regulate body temperature. B) Black body radiation is utilized in car engines for fuel efficiency. C) Black body radiation is used in smartphones for wireless charging. D) Various applications include cooking appliances, thermal imaging cameras, solar panels, and incandescent light bulbs. Show Answer Correct Answer: D) Various applications include cooking appliances, thermal imaging cameras, solar panels, and incandescent light bulbs. 2. Find the wavelength of a wave that has a frequency of 400 Hz traveling at 300 m/s A) 0.75m. B) 1.33m. C) 100m. D) 120, 000m. Show Answer Correct Answer: A) 0.75m. 3. Loudness can be measured by a unit called ..... A) Kilometers (km). B) Hertz (Hz). C) Decibel (dB). D) Ounces (oz). Show Answer Correct Answer: C) Decibel (dB). 4. Crest to crest or trough to trough A) Crest. B) Trough. C) Amplitude. D) Wavelength. Show Answer Correct Answer: D) Wavelength. 5. The combination of two or more waves that result in a single wave A) Diffraction. B) Resonance. C) Reflection. D) Interference. Show Answer Correct Answer: D) Interference. 6. A wave that has its amplitude in a direction perpendicular to its motion is called a A) Transverse wave. B) Doppler effect. C) Destructive interference. D) Constructive interference. Show Answer Correct Answer: A) Transverse wave. 7. If you increase frequency what happens to the wavelength? A) Wavelength increases. B) Wavelength decreases. C) Wavelength remains the same. D) None of the above. Show Answer Correct Answer: B) Wavelength decreases. 8. Material (matter) through which a wave travels A) Medium. B) Doppler Effect. C) Sound. D) Pitch. Show Answer Correct Answer: A) Medium. 9. Which type of wave can cause your skin to age prematurely? A) Ultraviolet waves. B) Radio waves. C) X-rays. D) None of the above. Show Answer Correct Answer: A) Ultraviolet waves. 10. What type of wave is a sound wave? A) Transverse. B) Mechanical. C) Longitudinal. D) Electrical. Show Answer Correct Answer: C) Longitudinal. 11. What is the key term for waves that pass through a surface? A) Diffraction. B) Reflection. C) Absorption. D) Transmitted waves. Show Answer Correct Answer: D) Transmitted waves. 12. In a transverse wave, the ..... is the lowest point. A) Trough. B) Crest. C) Amplitude. D) Medium. Show Answer Correct Answer: A) Trough. 13. Whats higher on the wave length? A) UV. B) Infrared. C) All the above. D) None of the above. Show Answer Correct Answer: A) UV. 14. The time it takes to complete one cycle is called the period. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. If a wave has a frequency of 50 Hz and a wavelength of 2 metres, what is its speed? A) 25 metres per second. B) 50 metres per second. C) 100 metres per second. D) 200 metres per second. Show Answer Correct Answer: C) 100 metres per second. 16. Which of the following is a type of signal that includes binary 0's and 1's? A) Digital. B) Linear. C) Static. D) Analog. Show Answer Correct Answer: A) Digital. 17. What is the relationship between the temperature of a black body and the intensity of radiation emitted? A) Directly proportional to the fourth power of its absolute temperature. B) Constant regardless of temperature. C) Proportional to the square root of its absolute temperature. D) Inversely proportional to the square of its absolute temperature. Show Answer Correct Answer: A) Directly proportional to the fourth power of its absolute temperature. 18. What happens to waves when they arrive at a flexible boundary? A) Not reflected, not inverted. B) Not reflected, inverted. C) Reflected, not inverted. D) Reflected, inverted. Show Answer Correct Answer: C) Reflected, not inverted. 19. High frequency in EM waves equals A) High energy and short wavelength. B) Low energy and short wavelength. C) High energy and long wavelength. D) Low energy and long wavelength. Show Answer Correct Answer: A) High energy and short wavelength. 20. A dog in a car with the window down howls with a sound at 433 Hz. The car is moving at 55.3 mph.b. What frequency does a hawk hear that is moving away from the car at 67.5 mph but in the same direction? A) 426 Hz. B) 368 Hz. C) 508 Hz. D) 415 Hz. Show Answer Correct Answer: A) 426 Hz. 21. If the vertical distance between successive crest and trough is 20cm in a transverse wave then the amplitude equal ..... A) 10. B) 5. C) 2.5. D) No correct answer. Show Answer Correct Answer: A) 10. 22. Waves that require a medium are called A) Mechanical waves. B) Transverse waves. C) Light waves. D) Gamma rays. Show Answer Correct Answer: A) Mechanical waves. 23. For a sound wave, the volume (loudness) of the sound is dependent on the: A) Amplitude. B) Period. C) Frequency. D) Wavelength. Show Answer Correct Answer: A) Amplitude. 24. Particles in water in an ocean wave move A) In a square. B) In a right angle. C) In a circle. D) In a dodecahedron. Show Answer Correct Answer: C) In a circle. 25. A tennis coach paces back and forth along the sideline 10 times in 2 minutes. The frequency of her pacing is A) 5 Hz. B) 5 s. C) 0.08 Hz. D) 0.08 s. Show Answer Correct Answer: C) 0.08 Hz. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 1Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 2Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 3Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 4Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 5Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 6Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 7Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 8Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 9Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books