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- Question
The wavelike properties of electrons are useful in
Options- A. Magnifying objects
- B. Lasers
- C. Weather reports
- D. All of the above
- Correct Answer
- Magnifying objects
ExplanationThe photoelectric effect pointed to the particle properties of light, which had been considered to be a wave phenomenon. Particles like electron and protons have both particle like and wave like behavior. Thus, according to de Broglie, all the material particles in motion possess wave characteristics. Although the dual nature of matter is applicable to all material objects but it is significant for microscopic bodies only.
- 1. Plants hormone that induces cell division is
Options- A. auxins
- B. gibberellins
- C. kinins
- D. domins Discuss
- 2. The Vedic deity Indra was the Goddess of
Options- A. wind
- B. eternity
- C. rain and thunder
- D. fire Discuss
- 3. The minimum age required to become a member of Rajya Sabha is
Options- A. 21 years
- B. 25 years
- C. 30 years
- D. 35 years Discuss
- 4. The main factor determining a region's climate is
Options- A. longitude
- B. latitude
- C. temperature
- D. All of the above Discuss
- 5. The name of Pierre Cardin is associated with which of the following fields?
Options- A. Painting
- B. Films
- C. Pop Music
- D. Fashion Designing Discuss
- 6. 'Queens berry Rules' is the name given to the rules in
Options- A. Boxing
- B. Football
- C. Tennis
- D. Cricket Discuss
- 7. Samantha Fox is associated with
Options- A. Politics
- B. Pop music
- C. Journalism
- D. Sports Discuss
- 8. A chronometer measures
Options- A. colour contrast
- B. sound waves
- C. time
- D. water waves Discuss
- 9. Which of the following is a cultural organisation?
Options- A. UNESCO
- B. ILO
- C. WHO
- D. FAO Discuss
- 10. The hardest substance available on earth is
Options- A. Gold
- B. Iron
- C. Diamond
- D. Platinum Discuss
More questions
Correct Answer: kinins
Correct Answer: rain and thunder
Correct Answer: 30 years
Correct Answer: latitude
Correct Answer: Fashion Designing
Correct Answer: Boxing
Correct Answer: Pop music
Correct Answer: time
Correct Answer: UNESCO
Correct Answer: Diamond
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