Question
Which of the following is a technique by which plants
get rid of waste material? I. Storing as gum and resin II. Removed in the falling leavesSolution
In a plant waste materials are often stored in old xylem in the form of gums and resins. Excessive leaf matter on your lawn going into winter is bad for several reasons. First, it will smother the grass and if not removed very soon in the spring it will inhibit growth. Second, it can promote the snow mold diseases. And finally, turf damage from critters (voles, mice) can be more extensive in the spring.
Which law describes the relationship between the force applied to a spring and its extension or compression?
What is the value of 1 horsepower in watts? Â
Which of the following is a characteristic of a conductor? Â
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when angle of incidence is 75% of the angle o...
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
A silicon sample is doped such that the number of holes far exceeds the number of electrons. Which of the following is true about its conductivity?
An electric heater draws a current of 6 A from a 220 V supply. What is the power consumed?
A particle is projected such that its velocity vector sweeps equal angles with horizontal at equal time intervals. The motion is best described as:
A Zener diode differs from a regular diode in that:
