What was used by Ruben to confirm that the source of oxygen evolved in photosynthesis is water?
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Confirm() function displays confirmation message box with __________ and __________ button.
(A) Ok, (C) Cancel
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Match the following: Confirm(), toLowerCase(), Function displays a confirmation message box,
Column‘A’ Column ‘B’ (1) Confirm() (A) Function displays a confirmation message box (2) toLowerCase() (B) Convert the given string into lower case alphabets (3) toUpperCase() (C) Convert given string into uppercase alphabets (4) onMouseOut (D) When the user moves the mouse away...
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From which of the following, the oxygen is released in plants during photosynthesis?
Answer is (B) Water
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No oxygen is liberated in purple sulphur bacteria during photosynthesis. This is because they use:
B) H2S as starting material
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A stationary source produces a note of frequency 350 Hz. An observer in a car moving towards the source measures the frequency
Given: n0 = 350 Hz, v = 340 m/s, nA = 370 Hz To find: Speed (vL), Frequency (nA) Formulae: i. When the car moves towards the stationary source then, nA = n0 \((\frac{v+v_s}{v})\) ii. When the car moves away from...
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The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
Correct option is (A) y = 8x \(\because\) Quantities of hydrogen and oxygen are x and y and their quantity are in ratio 1 : 8. \(\therefore\) x : y = 1 : 8 \(\Rightarrow\) \(\frac xy=\frac18\) \(\Rightarrow\) y =...
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The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
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In electrolysis of water experiment, the ratio of volumes of oxygen and hydrogen gases evolved is …………….
Correct option is A) 1 : 2
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Read the following statements and choose the correct option. (A) Moon is a luminous source of light. (B) A glow worm is a natural source of light.
Correct Answer - B The moon is not a luminous source of light, it simply reflects the light which is incident on it. A glow worm is a natural source of...
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Which one of the following is essential for photosynthesis: (a) Carbon dioxide (b) Nitrogen (c) Oxygen (d) Soil
(a) Carbon dioxide
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