General Science - Online Test
Q1. For motion in 3 dimensions we need
Answer : Option D
Explaination / Solution:
Motion is a change in position of an object with time. In order to specify position, we need to use a reference point and a set of axes. It is convenient to choose a rectangular coordinate system consisting of three mutually perpenducular axes, labelled X-, Y-, and Z- axes.
The point of intersection of these three axes is called origin (O) and serves as the reference point. The coordinates (x, y. z) of an object describe the position of the object with respect to this coordinate system.
To measure time, we position a clock in this system. This coordinate system along with a clock constitutes a frame of reference.
Q2. The direction of propagation of an electromagnetic plane wave is
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. Correct order for increasing number of corpuscles in our blood is :
Answer : Option C
Explaination / Solution:
WBCs are relatively lesser in number which averages 6000-8000 mm–3 of blood. A healthy adult man has, on an average, 5 millions to 5.5 millions of RBCs mm–3 of blood.. Blood normally contains 1,500,00-3,500,00 platelets mm–3.
Q4. in transverse waves, the constituents of the medium
Answer : Option A
Explaination / Solution:
In transverse wave motion medium particles oscillates or vibrates in a direction perpendicular to the direction of wave propagation to form crest & trough in the wave motion.
Q5. The tendency of offspring to differ from parents is called
Answer : Option C
Explaination / Solution:
Variation is the tendency of offspring to differ from its parents. Variation occurs due to change in genetic makeup of offsprings.
Q6. Glycolysis is also known as
Answer : Option A
Explaination / Solution:
The scheme of glycolysis was given by Gustav Embden, Otto Meyerhof, and J. Parnas, and is often referred to as the EMP pathway.
Q7. Sodium and potassium belong to the category of
Answer : Option B
Explaination / Solution:
Na and K are shiny, soft ,highly reactive metal at standard temprature and pressure and electronic configaration of Na & K is ns2,,compounds of Na & K are available most aboundenty in nature so thees two are alkali metal.
Q8. Yeast is used in the production of
Answer : Option C
Explaination / Solution:
Yeast is used in the production of bread and beer. Beer production involves production of ethyl alcohol. Bread is produced by fermentation process.
Q9. In a π (pi) bond formation, is necessary for one of the below criteria. Choose the appropriate one.
Answer : Option B
Explaination / Solution:
parallel orientataion of p orbitals are necessary for proper overlapping and formation of pie bond.
Q10. According to Farady's law
Answer : Option D
Explaination / Solution:
The induced electromotive force in any closed circuit is equal to the negative of the time rate of change of the magnetic flux enclosed by the circuit.
