Question

in population of beetle
06 How method of obtaining food varies in population
Explain
07 Gene" T' is dominant and gene "t" is recessive in ex
is recessive in expression
of pea plant. Explain according to Mendel's
experiment
different characters are inherited
08 How it be understood that different characters are ir
independently through Mendel's experiment.
09 The gender of Dhyan is determined by his father Virendra
sperm? Explain with reason.
10 There are similar possibilities that the child to be born will be
male or female. Explain
11 Explain : Gene controls the expression of character.
12 Explain acquired and inherited traits with examples.
13 Difference between homologous and analogous organs.
14 How vestigial organs prove to be examples of evolution?
15 What are fossils ? how are fossils formed. Give examples and
by which methods the age of fossils can be determined.
16 Explain the stages of evolution giving the example of eye.
17 What are the different basis of inheritance of characters.
18 By which experiment it can be explained that the ratio in "F2"
generation is 1:2:1 according to the genotypes TT, Tt, tt,
Chap - 10 Light - Reflection and Refraction
01 We want to obtain an erect image of an object using concave
mirror of focal length 15 cm. What should be the object distance?
What will be the nature of the image? Would it be enlarged or
diminished? Draw its ray diagram.
02 Focal length of a concave lens is 15 cm. How far should the
object be placed from the lens so that the image of the object is
formed at the distance of 10 cm from the lens? Also find
magnification
03 For a Concave mirror, find the position, size and nature o
when the object is placed (i) between F and P and (ii) berwoch
Cand F.​

Answer 1

in physics we have to consult the physian