MEDIUM
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Which vision did the sepoys and the rural society share during the revolt of 1857?

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Important Questions on Atoms

HARD
How did Sturtevant explain gene mapping while working with Morgan?
HARD

According to the Darwinian theory of natural selection, the rate of appearance of new forms is linked to the life cycle or the life span of an organism. Explain with the help of an example.

HARD
Write the scientific name of the organism Thomas Hunt Morgan and his colleagues worked with for their experiments. Explain the correlation between linkage and recombination with respect to genes as studied by them.
HARD
Mendel crossed a homozygous pea plant having yellow and round seeds with another pea plant bearing green and wrinkled seeds. He found that in some of the F2 population, new combinations of the parental characters were observed. How will you explain the appearance of a new combination of the parental characters in F2 offspring? Support your answer with the help of a Punnett square.
MEDIUM
What kind of fringes do you expect to observe if white light is used instead of monochromatic light?
EASY

Who proposed the chromosome theory of inheritance?

MEDIUM
Darwin's theory is based on
EASY
Two light waves of intensities I1 and I2 having same frequency pass through the same medium at a time in the same direction and interfere. The sum of the minimum and maximum intensities is
HARD
If one of two identical slits producing interference in Young’s experiment is covered with glass, so that the light intensity passing through it is reduced to 50%, find the ratio of the maximum and minimum intensity of the fringe in the interference pattern.
MEDIUM

Obtain the expression for the fringe width of interference fringes in Young's Double slit experiment.

HARD
Derive the expression for the fringe width in Young's double slit experiment.
HARD

Derive the expression for the intensity at a point where interference of light occurs. Arrive at the conditions for maximum and zero intensity.

HARD
Consider a Young's double slit experiment as shown in figure. What should be the slit separation d in terms of wavelength λ such that the first minima occurs directly in front of the slit (S1) ?

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EASY
Saprophytic and parasitic modes of nutrition are found in
MEDIUM
Name a scavenger and a multicellular decomposer.
EASY
The important steps in the process of decomposition are?
MEDIUM
What are decomposers? Name any two kinds of decomposers.
EASY
The decomposers in an ecosystem are _______
EASY
If we completely remove the decomposers from an ecosystem, the ecosystem functioning will be adversely affected because: