Question
Three statements are given followed by three
conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: Some drivers are tools. Some tools are screws. All screws are garages. Conclusions: I. All drivers can never be garages. II. Some tools are garages. III. All drivers being screws is a possibility.Solution
Some tools are screws (I) + All screws are garages (A) β Some tools are garages (I) β Conversion β Some garages are tools (I) + Some tools are drivers (I) β No conclusion. Hence conclusion I does not follow. Some tools are screws (I) + All screws are garages (A) β Some tools are garages (I). Hence conclusion II follows. Some drivers are tools (I) + Some tools are screws (I) β Probable conclusion βΒ All drivers may be screws (A). Hence conclusion III follows.
Which of the following electromagnetic waves are used for detection like Geiger tubes?
The unit of electric power is βΒ Β
The energy stored in a stretched spring is:
Which of the following vitamins are called fat-soluble vitamins?
A closely wound solenoid 40 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 2 cm. If the current carried is 8.0 A, e...
The amount of light entering in eye is controlled by:
Which of the following decays does not change the atomic number of the nucleus?
A conducting rod of length 0.2 m is rotated with angular velocity 10 rad/s about one end in a uniform magnetic field of 0.5 T perpendicular to the plane...
Which of the following quantities is a scalar?Β Β