General Science - Online Test
Q1. In an insulator, the forbidden energy gap between the valance band and conduction band is of the order of
Answer : Option B
Explaination / Solution:
In an insulator, the forbidden energy gap is very large.In general, the forbidden energy gap is more than 5eV and almost no electrons are available for conduction. Therefore, a very large amount of energy must be supplied to a valence electron to enable it to move to the conduction band.
In the case of materials like glass, the valence band is completely filled at 0 K. The energy gap between valence band and conduction band is of the order of 10 eV. Even in the presence of high electric field, the electrons cannot move from valence band to conduction band.
Q2. When a firm’s TR>TC, it cannot cover its normal profit
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. ____ is a special type of average which provides a measurement of relative changes from time to time or from place to place.
Answer : Option B
Explaination / Solution:
An Index number is a technique of averaging all the changes in the group of series over a period of time. Index numbers is a special type of average which provides a measurement of relative changes from time to time or from place to place.
Q4. Each testis has about 250 compartment called as
Answer : Option D
Explaination / Solution:
Each testis contains about 250 compartments called testicular lobules. Each testicular lobule contains one to three highly coiled seminiferous tubules that produce sperms.
Q5. In how many stages of education are there in India
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. Range is the
Answer : Option A
Explaination / Solution:
The Range is the difference between the lowest and highest values. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
Q7. The inflation rate is the
Answer : Option A
Explaination / Solution:
No Explaination.
Q8.
A car is traveling due west at 20.0 m/s. Find the velocity of the car after 37.00 s if its constant acceleration is 1.0 m/s2 due east. Assume the acceleration remains constant.
Answer : Option A
Explaination / Solution:
Let's let west direction as +ve.
Initial velocity u = + 20.0 m/s
Final velocity = ?
Acceleration a = - 1.0 m/s2
Time taken t = 37.0 s
We know,
v = u + at
=>
=> v = -17.0
-ve sign shows direction of velocity is opposite. So velocity is 17.0 m/s due east.
Q9. A travelling wave, at a rigid boundary or a closed end,
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. Chromosome theory of inheritance was proposed by
Answer : Option B
Explaination / Solution:
Walter Sutton and Theodor Boveri are credited with developing the Chromosomal Theory of Inheritance, which states that chromosomes carry the unit of heredity (genes) in 1902.
