Options:
- A. Amplitude modulated
- B. Frequency modulated
- C. fixe modulated
- D. Velocity modulated
View Answer
B. Frequency modulated
Everyday Science
The owl can see most clearly in total darkness because:
Options:
- A. it has squint eyes
- B. it has light bulbs in its eyes provided by nature
- C. it produces infrasonic sounds
- D. it has large eyes with orbs directed forward, giving it binocular sight
View Answer
D. it has large eyes with orbs directed forward, giving it binocular sight
A photostat machine works on _____________?
Options:
- A. electromagnetic image making
- B. magnetic image making
- C. thermal image making
- D. electrostatic image making
View Answer
D. electrostatic image making
To measure the speed of an approaching car a police officer shines?
Options:
- A. light waves on it
- B. microwaves on it
- C. radio waves on it
- D. ultra high frequency waves on it
View Answer
C. radio waves on it
Rainbow is seen after rain because of hanging molecules of water which act as __________?
Options:
- A. Lens
- B. Prism
- C. Mirror
- D. Slabs
View Answer
C. Mirror
Main use of salt in diet is to : ___________?
Options:
- A. ease the process of cooking
- B. increase the taste
- C. produce small amount of hydrochloric acid required for digestion
- D. inclease solubility of food particles in water
View Answer
C. produce small amount of hydrochloric acid required for digestion
Erythrocyte is another name for a ___________?
Options:
- A. white blood Cells
- B. Platelet
- C. Red Blood cells
- D. Plasma
View Answer
C. Red Blood cells
1 tonne = _____ kg?
Options:
- A. 100
- B. 400
- C. 1000
- D. 4000
View Answer
C. 1000
Which among the following waves is used for communication by artificial satellites ?
Options:
- A. Micro waves
- B. Radio waves
- C. A. M.
- D. Infra-red waves
View Answer
A. Micro waves
The chemical name of chalk is
Options:
- A. Sodium nitrate
- B. Zinc sulfate
- C. Sulphuric acid
- D. Calcium carbonate
View Answer
D. Calcium carbonate