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1946. Which of the following characteristics of virus best denote its unique nature ? 1. It can attack bacteria. 2. It can be crystallised. 3. It can replicate. 4. It can invade human body.
A. 2 and 3
B. 3 and 4
C. 1, 3 and 4
D. 1, 2 and 4
Explanation:
1947. Given below are some of the home appliances : 1. 1/8 H.P. Water pump 2. Fluorescent tubelight 3. Room heater 4. Night lampWhich of the following is the correct sequence in deecreasing order of the wattage of the above ?
A. 2, 1, 3, 4
B. 3, 1, 2, 4
C. 3, 2, 1, 4
D. 4, 2, 1, 3
Explanation:
1948. Bar is the unit of
A. heat
B. temperature
C. current
D. atmosphericv pressure
Explanation:
1949. Distant objects can be seen with the help of
A. cronometer
B. microscope
C. telescope
D. spectroscope
Explanation:
1950. The hardest substance available on earth is
A. Platinum
B. Coal
C. Diamond
D. Gold
Explanation:
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