ECG stands for?
Correct answer B. Electro Cardio Gram
Subject / 3,947 questions
Everyday Science MCQs
Page 190 of Everyday Science multiple-choice questions with answers. Tap an option to check yourself.
Page 190 of 198
Mosquito has ____ sharp edges like teeth?
Correct answer B. 47
Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f?
Correct answer B. 90W
Advertisement
Fundamental frequency of stationary waves in open pipe is ____ times the frequency in closed pipe?
Correct answer B. Two
Laplace found that the alternate compressions and rarefactions produced in sound waves follows?
Correct answer B. adiabatic law
Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are?
Correct answer D. both A and C
A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency?
Correct answer C. frequency lower than 20 Hz
It is possible to distinguish between transverse and longitudinal waves form the property of?
Correct answer B. polarization
Which one is the correct relation for fundamental frequency of open and closed pipe?
Correct answer A. fopen = 2 fclosed
Advertisement
The world’s largest animal is?
Correct answer A. blue whale
The velocity of sound in air would become double than its velocity at 0°C at temperature?
Correct answer C. 819°C
A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe?
Correct answer A. always an node in formed
The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is?
Correct answer A. 1 N
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are?
Correct answer A. 5m/s, 1m/s
Which of the following is not an example of projectile motion?
Correct answer A. a gas filled ballon
Advertisement
The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be?
Correct answer B. 1
A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10?
Correct answer A. 14 m
Which law of motion is also called law of inertia?
Correct answer A. 1st law
Why Ballistic missile fails in some circumstances of precision?
Correct answer B. due to air resistance
What is the angle of projection for which the range and maximum height become equal?
Correct answer B. tan-1 4