General Science - Online Test
Q1. Government fixes for how many agricultural products
Answer : Option B
Explaination / Solution:
The MSP is announced by the Government of India for 25 crops currently at the beginning of each season viz. Rabi and Kharif.
Q2. Rain is falling vertically with a speed of 30 m . A woman rides a bicycle with a speed of 10 m in the north to south direction. What is the direction in which she should hold her umbrella?
Answer : Option C
Explaination / Solution:
The described situation is shown in the given figure.
Here,
vc = Velocity of the cyclist
vr = Velocity of falling rain
In order to protect herself from the rain, the woman must hold her umbrella in the direction of the relative velocity (v) of the rain with respect to the woman.
v = vr + (-vc)
= 30 + (-10) = 20 m/s
tan θ =
θ = tan-1
Q3. When 50 mL of 1M oxalic acid is mixed with 0.5 g of wood charcoal, the final concentration of the solution after adsorption is 0.5 M. The amount of the oxalic acid adsorbed per gram of charcoal is
Answer : Option A
Explaination / Solution:
Amount of oxalic acid adsorbed = (0.5x50)/1000 Mass of oxalic acid adsorbed per gram of charcoal = (0.0025x126)/0.5
Q4. The reason for slow growth rate and re-emergences of poverty
Answer : Option C
Explaination / Solution:
Debt Trap - There was an increasing dependence on foreign loans and repayment of these loans became difficult. New loans were taken to repay older ones and thus interest obligations mounted over the years.
Q5. The complex formed by a pair of synapsed homologous chromosomes is called
Answer : Option D
Explaination / Solution:
The complex formed by a pair of synapsed homologous chromosomes is called a bivalentor a tetrad. However, these are more clearly visible at the Prophase1 of Meiosis-1.
Q6. A cylinder of radius R and length L is placed in an uniform electric field E parallel to the cylinder axis. The total flux for the surface of the cylinder is given by
Answer : Option B
Explaination / Solution:
Incoming flux =outgoing flux so net flux=0
Q7. Figure shows the strain-stress curve for a given material. What is the Young’s modulus?
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. The property of Taq polymerase explored in PCR is
Answer : Option D
Explaination / Solution:
Taq polymerase is a thermostable DNA polymerase. Taq polymerase is an enzyme that copies DNA. It is isolated from a heat-loving bacterium that is naturally found in hot springs, so the enzyme doesn't break down at the high temperatures necessary for copying DNA using a polymerase chain reaction.
Q9. Select the mismatched pair of the following :
Answer : Option D
Explaination / Solution:
Cortical nephron is about 25% of total nephrons. Glomerular filtration rate is 180 litre per day. Juxtamedullary nephron makes about 15% of total nephrons but lung do not removes 180 L of carbon dioxide per day.
Q10. What amount of heat must be supplied to 2.0 kg of nitrogen (at room temperature) to raise its temperature by 45 C at constant pressure? (Molecular mass of = 28; R = 8.3 J
.)
.)
Answer : Option A
Explaination / Solution:
Q=nCvΔT=2×10−2×10−328×72×8.3×45=934Jn=wtingmMolecularwtCv=72RforDiatomicGas
