At which angle the range of the projectile is maximum____________________?
At which angle the range of the projectile is maximum____________________?
A. 45
B. 60
C. 30
D. none
A. 45
B. 60
C. 30
D. none
A. radio waves
B. ultraviolot rays
C. X-rays
D. sound waves
A. hyperbola
B. ellipse
C. parabola
D. straight line
A. 100 cm
B. 99 cm
C. 99.2 cm
D. 98 cm
A. Metric system
B. Metric or French system of units
C. Metric or British system of units
D. None of these
A. velocity
B. wavelength
C. amplitude
D. frequency
A. Proton-proton
B. Proton-neutron
C. Neutron-neutron
D. All of the above