Q1.The property which doesn’t belong to muscle fibres is :
Answer : Option DExplaination / Solution:
Muscle fibres have properties of excitability, elasticity and contractility but conductivity is not present in muscles fibers. These fibres help in movement of different body parts.
Q2.Average power supplied to a capacitor over one complete cycle
Answer : Option DExplaination / Solution:
We know that in capacitor Current leads Voltage by 90degree. Over one complete cycle, in first quarter cycle Capacitor charges and next quarter cycle it's discharge. This will continue in next negative half cycle. So the NET POWER ABSORB IS ZERO.
Answer : Option DExplaination / Solution:
In series circuits, the current always remains same while potential is different across different circuit components
Answer : Option DExplaination / Solution:
Biofortification is the method to enhance the nutritional value of seeds by changing the gene of the crop that produces more protein, vitamins or other nutrient.
Q5.Which of the following contraceptive method is useful to control STD’s as well as unwanted pregnancy
Answer : Option AExplaination / Solution:
Condoms are protective covering of penis that do not allow the passage of semen into vagina of female during sexual intercourse. This contracetive prevents the fusion of body fluid of male and female and protect from STDs.
Q6.What is the total number of atoms per unit cell in a face centered cubic structure?
Answer : Option CExplaination / Solution:
In Fcc each atom at corner contributes 1 per unit cell while atoms at face centers contribute 3 to each unit cell. So Total no of atoms per unit cell is 4