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- Question
Which lenses should be used to correct the defect of astigmatism?
Options- A. Convex lens
- B. Bifocal lens
- C. Concave lens
- D. Cylindrical lens
- Correct Answer
- Cylindrical lens
ExplanationAstigmatism is a common vision condition that causes blurred vision. It occurs when the cornea is irregularly shaped or sometimes because of the curvature of the lens inside the eye.
- 1. Acceleration is the rate of change of
Options- A. Speed
- B. Velocity
- C. Jerk
- D. Jounce Discuss
- 2. Radiocarbon dating technique is used to estimate the age of
Options- A. fossils
- B. rocks
- C. monuments
- D. soil Discuss
- 3. Which of the following group of elements are diamagnetic ?
Options- A. Argon, copper, silver
- B. Hydrogen, argon, copper
- C. Oxygen, copper, silver
- D. Hydrogen, oxygen, Argon Discuss
- 4. At what temperature (in Fahrenheit) pure water freezes?
Options- A. 0
- B. 17
- C. 32
- D. 39 Discuss
- 5. "Light years" is the unit of _____?
Options- A. Acceleration
- B. Distance
- C. Light Intensity
- D. Weight Discuss
- 6. Find the work done (in J) when a charge of 10 C moves across a potential difference of 2 V.
Options- A. 20
- B. 5
- C. 40
- D. 10 Discuss
- 7. Which is the point from where an azimuth originates?
Options- A. South
- B. North
- C. East
- D. West Discuss
- 8. An object with a constant speed
Options- A. is not accelerated
- B. might be accelerated
- C. is always accelerated
- D. also has a constant velocity Discuss
- 9. If a body weighs 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface?
Options- A. 12N
- B. 2N
- C. 10N
- D. 6N Discuss
- 10. When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is
Options- A. the violet ray
- B. the red ray
- C. the green ray
- D. the blue ray Discuss
Physics problems
Search Results
Correct Answer: Velocity
Explanation:
The rate of change of velocity is called as Acceleration.
Correct Answer: fossils
Explanation:
Radiocarbon dating also referred to as carbon dating or carbon-14 dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.
Correct Answer: Argon, copper, silver
Correct Answer: 32
Explanation:
Correct Answer: Distance
Explanation:
A Light-year is a distance that light travels in the vacuum in one Julian year (365.25 days).
The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometers or 5.9 trillion miles.
Correct Answer: 20
Correct Answer: North
Explanation:
The azimuth originates at true North i.e, the azimuth originates from the north point. It is a measure of how far an object forms the observer's north point.
Azimuth is a technical mapping term which is used to describe the direction of an angle between north and south on a compass circle through which the circle line passes. It is the most common military method to express direction. When using an azimuth, the point from which the azimuth originates is the center of an imaginary circle.
Correct Answer: might be accelerated
Correct Answer: 2N
Explanation:
Weight is mass x g. Since mass is constant and g is only of that on the earth. The weight on the moon is only of that on the earth.
Therefore 2N i.e (b) is the answer.
Correct Answer: the red ray
Explanation:
Red is deviated the least and violet the most
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