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ATQ,
Let the length of shorter train (train ‘X’) be ‘x’ meter. So, length of the longer train (train ‘Y’) = (x + 180) meters ATQ; {(162 + 108) × (5/18)} = {(x + x + 180)/12} Or, (75 × 12) = (2x + 180) Or, (900 – 180) = 2x Or, (720/2) = x So, x = 360 m Length of shorter train (train ‘X’) = 360 m Length of longer train (train ‘Y’) = 540 m So, time taken by the longer train to cross a tree = {540/(162 × 5/18)} = (540/45) = 12 seconds
Which of the following element has a perforated cell wall?
The precursor of auxin is _____
In the conditions of severe drought, the release of ___ plant hormone starts which closes the plant stomata.
The hormone responsible for promoting root growth and apical growth is:
The enzyme synthesises the complementary DNA strand of the desired gene from its mRNA is?
In plant, the cell walls of ___ cells are coagulated with the deposition of suberin which makes them impervious to water and air.
Cut or excised leaves remain green for long if induced to root or dipped in_____
Which hormone is known as stress hormone that plays a important role in plant leaves abscission and abiotic stress tolerance
Site for protein synthesis is _______
Which of the following tissue has primary function of supporting the plant organs?
