General Science - Online Test
Q1. Phasor diagrams show
Answer : Option D
Explaination / Solution:
By convention phasor diagrams are made to show the rotation of phasor in counterclockwise direction with constant speed
Q2. A functional G-Actin molecule in its free state is bound to :
Answer : Option A
Explaination / Solution:
A functional G-actin molecule in its free state is bound to magnesium ion and ATP. G-actin molecule forms a bridge between the muscle fibres for sliding.
Q3. RNAi is used to produce resistance against the nematode
Answer : Option D
Explaination / Solution:
RNA interference (RNAi) is present in all eukaryotic organisms as a method of cellular defense.
When Meloidogyne incognita (parasite) consumes cells with RNAi gene, parasite cannot survive and this prevents infestation. The introduced RNAi gene DNA forms both sense and anti-sense RNA. Two strands being complementary to each other bend and form ds RNA, leading to RNAi. Thus, the mRNA of nematode is silenced and the parasite cannot survive there.
Q4. Example of ferromagnetic substance is
Answer : Option C
Explaination / Solution:
This is a Fact
Q5. Indian population is
Answer : Option D
Explaination / Solution:
The Indian population is young population as large number of population belongs to age group of 35 to 50 years.
Q6. Coordination number of hcp and ccp is
Answer : Option A
Explaination / Solution:
In hcp and ccp lattice, each atom is surrounded by 12 other atoms . Therefore, hcp and ccp lattice have ccordination no. 12.
Q7. Which of the following in an example of macro economics
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Indifference curve slopes___________?
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. It is now recognized that the ‘Modern Periodic Law’ is essentially the consequence of
Answer : Option A
Explaination / Solution:
Modern Periodic Law of element may be defined as the Physical and chemical properties of the elements are periodic functions of their atomic numbers.It means, when the elements are arranged in the order of their increasing atomic numbers, it is observed that the elements of similar properties recur at regular intervals or periodically. As a result of this, the elements fall in certain groups and lead to an arrangement called the modern periodic table of elements. It must be noted that elements are arranged in the periodic table in order of atomic numbers because atomic number is the most fundamental property of an element. The systematic arrangement of elements in modern periodic table according their atomic number helps in justification of isotopes of elements at one place.
Q10. If a positive charge moves opposite to the direction of the electric field
Answer : Option D
Explaination / Solution:
A positive charge experiences a force in the direction of the field. If it moves opposite to the direction of the field, negative work is done by the electric field on the charge. Potential energy of the charge increases since an external source is required to do work on the charge against the direction of the field, and the work done is stored in the charge as its potential energy.
