Physics
Answer
m < 1
Reason — A concave lens always forms a virtual, erect, and diminished image of an object which means the size of the image is smaller than the size of the object and as magnification is the ratio of the length of image to the length of object so linear magnification of a concave lens is always less than 1.
Related Questions
The potential difference between terminals of a cell in a closed electric circuit is:
- terminal voltage
- electro motive force
- voltage drop
- none of these
During melting of ice at 0°C the :
- energy is released and temperature remains constant.
- energy is absorbed and temperature remains constant.
- energy is released and temperature decreases.
- energy is absorbed and temperature increases.
A radioactive element is placed in an evacuated chamber. Then the rate of radioactive decay will:
- Decrease
- Increase
- Remain unchanged
- Depend on the surrounding temperature
The graph given below shows heat energy supplied against change in temperature when no energy is lost to the surrounding. The slope of this graph will give :
- Specific heat capacity
- Latent heat of fusion
- Latent heat of vaporization
- Heat capacity