Conversion of milk to curd improves its nutritional value by increasing the amount of
|
The similarity of bone structure in the forelimbs of many vertebrates is an example of |
Answer |
|
Which of the following characteristics represent ‘Inheritance of blood groups’ in humans? |
Answer |
|
The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is |
Answer |
|
The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed organ pipe. If the length of the closed organ pipe is 20 cm, the length of the open organ pipe is |
Answer |
|
At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earths atmosphere? |
Answer |
|
The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is |
Answer |
|
A carbon resistor of (47 ± 4.7) kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be |
Answer |
|
A set of n equal resistors, of value R each, are connected in series to a battery of emf E and internal resistance R. The current drawn is I. Now, the n resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10 I. The value of n is |
Answer |
|
A battery consists of a variable number n of identical cells (having internal resistance r each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n? |
Answer |
|
Unpolarised light is incident from air on a plane surface of a material of refractive index $\mu$. At a particular angle of incidence i, it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation? |
Answer |
