Assuming XTAL = 8MHz, calculate the frequency of the wave generated by the following program:

1.DDRD = (1<<5); TCCR1A = 0x40;

TCCR1B = 0x09; OCR1AH = 0x02;

OCR1AL = 0x00;

2. OCR1A is loaded with 0x0500

3.XTAL = 1MHz and OCR1A is loaded with 0x0005

4. a prescaler option of 8 is chosen, XTAL = 4MHz, OCR1A = 0x150

5.a prescaler option of N is chosen, XTAL = Fosc, OCR1A = X