answer
Answer of set2
Answer Set
1. a
Practice set 1- Click here
2-kingdom system – Carolus Linneaus
3-kingdom system - Ernest Hacckel
4-kingdom system - Strainier and Von Neil
5- Kingdom system - Robert H. Whittaker
6-kingdom system - Gray and Doolittle
2. d
Kasper Bauhin developed the concept which was extensively
used by Carolos Linnaeus.
used by Carolos Linnaeus.
3. a
Amphibian of plant kingdom is Bryophyte.
First land inhibiting plant- Bryophyte
First fully terrestrial plant- Pteridophyta
4. a
Largest Bryophyte is Dawsonia
Smallest Bryophyte is Zoopsis
5. b
In rape test Fructose
is tested.
is tested.
6.d
Various deficiency related diseases
Carbohydrate- Marasmus
Vitamin A-Night blindness
Vitamin B1-Beri-beri
Vitamin B3-Pellagra
Vitamin C-Scurvy
Vitamin D-Rickets
7. a
ligament joins muscle to bone. Tendon joins bone to bone.
8. b
Universal donor is 'o' positive.
Universal acceptor is AB negative.
9. c
Mimicry is copying other.
10.c
The coelom present in Ascaris/Aschelminthes is Pseudocoel.
11. a
The most important condition for origin of life is water.
12. b
volume charge density=Charge per unit volume
surface charge density=Charge per unit area
linear charge density=Charge per unit length
13. b
No. of free electrons increase with rise in temperature in
semi conductors so conductance increases with rise in temperature
semi conductors so conductance increases with rise in temperature
14. a
Resistance(unit is Ohm)
In conductor: increases with increase in temp
R2=R1(1+αt)
Where
R2= resistance at temp(t2)
R1= resistance at temp(t1)
temperature difference(t)=t2-t1
α=coefficient of linear expansion
In semi conductor: decreases increase in temp
In insulator: decreases increase in temp
Conductance=1/Resistance
15. c )both
Note : nature of material is first priority if option both
is not given
is not given
16. b
In discharging mode: E=V + Ir
In short circuit: V=0 as R=0
17. b
Series=potential divider
Parallel =current divider
18. d
In parallel: total emf=emf of each cell
In series: total emf=emf of a cell*no. of cell
So, equivalent emf is 6V
19. d
Sound wave is longitudinal wave.
And longitudinal wave cannot exhibit phenomenon of
polarization
polarization
Polarization is exhibited by transverse wave only.
20. c
10 to the power 6 times
Examples:
90d (decibel) sound is 10 to the power 6 times more intense
than 30dB
than 30dB
80d (decibel) sound is 10 to the power 5 times more intense
than 30dB
than 30dB
80d (decibel) sound is 10 to the power 2 times more intense
than 60dB
than 60dB
Level of sound has logarithmic operations.
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Practice set 1- Click here