Answer: Option A
Explanation:
The force of attraction existent between the proton and neutron in the nucleus of an atom is extremely large. When the nucleus splits there is a large release of heat and energy larger than the force present in any of the other options listed.
Explanation:
All measurements have a degree of uncertainty regardless of precision and accuracy. This is caused by two factors, the limitation of the measuring instrument (systematic error) and the skill of the experimenter making the measurements (random error).
- Systematic errors: <em>they come from the instrumentation, they tend to be consistent in magnitude and/or direction</em>, if this is known the accuracy can be improved by additive or proportional corrections. Additive correction involves adding or subtracting a constant adjustment factor to each measurement.
- Random errors: <em>also known as human error, is determined by the experimenter's skill or ability to perform the experiment and read scientific measurements. </em> Unlike systematic errors, random errors vary in magnitude and direction.
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Answer:
A dicot is a flowering plant that has one seed leaves. The monocot plants have a single cotyledon. Maize only has one cotyledon in their seed, so it's a monocot. Seeds having two Cotyles are mainly called a Dicot. A pea is a dicotyledonous plant, the seed (the pea itself) has two halves, cotyledons, hence dicot being 2.
Explanation:
One or more of the cotyledons are the first to appear from a germinating seed. Based on the number of cotyledons, botanists classify flowering plants (angiosperms) into :
a) plants with one embryonic leaf, termed monocotyledonous (monocots).
b) plants with two embryonic leaves, termed dicotyledonous (dicots).
Helpful Link:
https://www.vedantu.com/question-answer/in-pea-caster-and-maize-the-number-of-cotyledons-class-11-biology-cbse-5f626a17e5bde9062ff6d2a3
Answer: 29 cm
Explanation:
The Focal length equation is:
(1)
Where:
is the focal length
is the distance between the object and the convex lens
is the distance between the image and the convex lens
On the other hand, the magnification 
of the image is given by the following equation:
(2)
Where 
because the image is real, inverted and greater than the object
Finding from (2):
(3)
(4)
Substituting (4) in (1):
(5)
Finding :
(6)
This is the focal length
