
Advanced sunrise and delayed sunset found in the sky are due to the phenomenon of _____.


Important Questions on General Science

Match List-I with List-II and select the correct answer using the codes given below the lists.
List-I (Explanation) | List-II (Term) |
A. Colour of an opaque object. | 1. Fluorescence |
B. Colour observed through a coloured glass. | 2. Reflection |
C. Bending of the image of a rod dipped in water partially. | 3. Transmission |
D. Shining observed when one steps on an earthworm. | 4. Refraction |


Which of the following statements about optical microscope is/are correct?
1. Both the eyepiece and objective of a microscope are convex lenses.
2. The magnification of a microscope increases with increase in focal length of the objective.
3. The magnification of a microscope depends upon the length of the microscope tube.
4. The eyepiece of a microscope is a concave lens.
Select the correct answer using the codes given below:

The following question consists of two statements, Statement-I and statement-II. Examine these two statements carefully and select the correct answer using the codes given below.
Assertion (A): A body which is suspended from a spring balance is partially immersed in a liquid. The spring balance reading will show a value equal to weight of the body.
Reason (R): A body immersed in a liquid experiences an upward thrust which is equal to the weight of the liquid displaced by it.



Which among the following is/are the reasons behind using mercury in thermometers?
1. Mercury does not wet the inner sides of the thermometer.
2. It can be seen easily in a thin capillary tube of the thermometer.
3. It is a good conductor of heat.
4. It is non-toxic.
Select the correct answer using the codes given below.
