General Science - Online Test
Q1. According to the law of equipartition of energy, the total energy is equally distributed in all possible energy modes, with each mode having an average energy equal to
Answer : Option C
Explaination / Solution:
The law of equipartition of energy sates that for any dynamical system in a thermal equilibrium, the total energy is equally divided among the degrees of freedom. The energy associated with a molecule for one degree of freedom is
Q2. Positive economics states
Answer : Option A
Explaination / Solution:
Positive economics is the branch of economics that concerns the description and explanation of economic phenomena.
Q3. Adipose tissues in whales and dolphins help in
Answer : Option A
Explaination / Solution:
Adipose tissues in whales and dolphins help in thermoregulation. Adipose tissue stores fats that help maintaining temperature of the body. Fat acts as insulator that maintains constant temperature of the body.
Q4. Element involved in the synthesis of cell wall and storage material are called
Answer : Option D
Explaination / Solution:
Those minerals that are involve in the synthesis of cell wall and storage material are called framework element. Calcium, Magnesium, Carbon includes framework elements.
Q5.
Read the following statements :
i. Opening of hepato-pancreatic duct into jejunum is guarded by Sphincter of Oddi.
ii. Duodenum receives bile-pancreatic duct.
Answer : Option A
Explaination / Solution:
Duodenum receives bile from pancreatic duct. Bile contains bile juice that contain bile salt used for emulsification of fat. Sphincter of Oddi is not present between hepatic-pancreatic duct into jejunum.
Q6. When an electric discharge is passed through gaseous hydrogen, the H2 molecules dissociate and the energetically excited hydrogen atoms produced emit electromagnetic radiation of discrete frequencies. The hydrogen spectrum consists of
Answer : Option B
Explaination / Solution:
The emission spectrum of hydrogen consists of several series of sharp emission lines in the ultraviolet (Lyman series). in the visible (Balmer series). and in the infrared (Paschen series, Brackett series, etc,) regions of the spectrum. These series are named after their discoverer.
Q7. Lens maker’s formula is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. The immunoglobulin abundant in colostrum is
Answer : Option C
Explaination / Solution:
Colostrum is the milk secreted by pregnant female after the delivery of baby. This milk contains immunoglobulin IgA that provide immunity to baby from several diseases.
Q9. Which one of the following are non-renewable resources?
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. Label the arrows in the given diagram of brain from top to bottom :
Answer : Option B
Explaination / Solution:
The part of human brain shown above has marked as cerebellum, pons and medulla oblongata of hind brain.
