General Science - Online Test
Q1. The black soil of the Deccan Plateau is particularly suitable for cultivation of _______.
Answer : Option C
Explaination / Solution:
The black soil of the Deccan Plateau is particularly suitable for cultivation of cotton, leading to concentration of textile industries in this region.
Q2. Codon is made up of
Answer : Option A
Explaination / Solution:
A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. A codon is a triplet.
Q3. The ratio of the currents I1 when switch S is off and I2 when switch S is on is
Answer : Option B
Explaination / Solution:
When swithch S is off, both resistances are included in the circuit.
Q4. A particle of mass 10 g is executing simple harmonic motion with an amplitude of 0.5 m and periodic time of seconds. The maximum value of the force acting on the particle is
Answer : Option A
Explaination / Solution:
Given , T= s
amplitude, x= 0.5 m
mass , m = 10g=0.01kg ,as we know that:
The maximum force is obtained at the maximum displacement i.e . amplitude
The negative value of force shows the attractive nature.
Q5. Molecular mass of glucose is
Answer : Option D
Explaination / Solution:
Molecular mass of Glucose is calculated using the relation :
Molecular mass
= ( 6*atomic mass of C , 12* atomic mass of H , 6* atomic mass of O ) u
substituting the respective atomic masses we get ,
Molecular mass of glucose ( C6 H12 O6 )
= [ 6(12.0107)+12(1.008)+6(15.9994) ]
= 180.162 u.
Q6. For moderation of the climate and body temperature of living beings, the responsible factor is:
Answer : Option B
Explaination / Solution:
Heat of vapourisation is the responsible factor.
Q7. Which of the following fungi is used as food
Answer : Option A
Explaination / Solution:
Mushrooms are eaten by many people and large scale mushroom culture is a growing industry. It is a rich source of protein and other micronutrients.
Q8. In the single slit diffraction, the screen is at a large distance as compared to slit width, the different rays from the slit would be
Answer : Option A
Explaination / Solution:
the screen on which the fringes are formed is at a large distance. The two or more paths from the slits to the screen were treated as parallel. Parallel paths from the slit are combined at a single point on the screen. This arrangement is often used since it gives more intensity than placing the screen far away.
Q9. For strong electromagnets use is made of
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. Read the following statements :
a) India is considered as one of the 12 mega diversitycenters of the world.
b) India contributes to a high percentage of global species diversity.
a) India is considered as one of the 12 mega diversitycenters of the world.
b) India contributes to a high percentage of global species diversity.
Answer : Option D
Explaination / Solution:
The megadiverse countries are a group of countries that harbor the majority of Earth's species and high numbers of endemic species. Conservation International identified 17 megadiverse countries in 1998.
India is one of the twelvemega diversity countries of the world with bio-diversity hot spots such as Eastern Himalayaand the Western Ghats,
With only 2.4% of world's land area, India accounts for 7-8% of recorded species of the world. In terms of species richness, India ranks seventh in mammals, ninth in birds and fifth in reptiles.
