In the main method of FanTest class, write the java code to get and print the value of speed, given that the object name is fan1.a.System.out.println(fan1.setSpeed());b.System.out.println(fan1.getSpeed(int speed));c.System.out.println(fan1.getSpeed(speed));d.System.out.println(fan1.getSpeed());

The speed(ω) - torque(T) characteristics of a fan type load is given byans.T ∝ ωT ∝ 1/ωT = constantT ∝ ω2 Previous Marked for Review Next

Variable Fan Speed Control

You want to compare the energy efficiency of two electric fans. For every 100 J of electrical energy supplied:Fan 1 produces 60 J of kinetic energy, 30 J of heat and 10 J of sound.Fan 2 produces 85 J of kinetic energy, 10 J of heat and 5 J of sound.Determine which fan is more efficient.Fan 1Fan 2

correct answerPredict the output of following Java Programs.public class Physics extends Thread {    public static void main(String[] args)     {        try         {            Thread t = new Thread(new Physics());            Thread t2 = new Thread(new Physics());        }        catch (Exception e)         {            System.out.print("e ");        }    }    public void run()     {        for (int i = 0; i < 2; i++)         {            try             {                Thread.sleep(500);            }            catch (Exception e)             {                System.out.print("e2 ");            }            System.out.print(Thread.currentThread().getName()+ " ");        }    }}Optionseno outpute2compilation fails

Check the following Java program carefully. What should be written in the blank? Choose from the given options.                                        public class Test {  public static void main(String[] args) {    System.out.print("The grade is " + getGrade(78.5));    System.out.print("\nThe grade is " + getGrade(59.5));  }  public static ________ getGrade(double score) {    if (score >= 90.0)      return 'A';    else if (score >= 80.0)      return 'B';    else if (score >= 70.0)      return 'C';    else if (score >= 60.0)      return 'D';    else      return 'F';  }}Group of answer choicesvoidStringintchar