It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______?

Related Mcqs:

1. When a person enters a dark room from bright light he is not able to see clearly for a little while because the?

   A. Eye is unable to adjust itself immediately
   B. Retina becomes insensitive momentarily
   C. Iris is unable to dilate the pupil immediately
   D. Distance between the lens and retina take time to adjust

2. What is the range, in hertz, of the normal human hearing?

   A. 10 Hz to 10 kHz
   B. 20 Hz to 20 kHz
   C. 2000Hz
   D. 40 Hz to 40 kHz

   Submitted by: ABDUL HAYEE

3. Animal with the sharpest hearing ability?

   A. Rat
   B. Greater wax moth
   C. Bat
   D. Squirrel

   Submitted by: Mansoor Ahmed Suhag

4. Which of the following is used for hearing the sound of heart and lungs?

   A. Steroscope
   B. Stethoscope
   C. Oscillator
   D. Oncolator

   Submitted by: Farhan Rana

5. “Each electron in an atom must have its own unique set of quantum numbers” is a statement of_______________?

   A. Aufbau principle
   B. Pauli exclusion principle
   C. Hund’s rule
   D. Periodic law

   Submitted by: Mansoor Ul Haque

6. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

   A. Visible
   B. Transparent
   C. Invisible
   D. opaque
   E. None of these

7. Bats can also fly in dark because they are capable of taking the help of _________?

   A. Ultraviolet Waves
   B. Ultrasonic Waves
   C. Electromagnetic Waves
   D. Special Retina

8. The large dark patches on the Moon’s surface are known as___________?

   A. Dark matter
   B. Maria, or seas, even though there is no water on the Moon
   C. Maria, or seas, because they are filled with water
   D. Moon spots

   Submitted by: Mansoor Ul Haque

9. How dark matter is detected?

   A. Dark matter is detected through its absorption effects
   B. Dark matter is detected through its gravitational effects on visible matter
   C. Dark matter is detected through its absorption and gravitational effects
   D. Dark matter cannot be detected

   Submitted by: Muhammad Abdullah

10. Which region of the Moon is known as Dark side?

    A. Equator
    B. South Pole
    C. North Pole
    D. None of these

    Submitted by: Areesha Khan