Relationship between Doppler frequency shifts of two radars A and B having 0.1 foot and 0.05 foot wave-lengths, approaching the target at 1000 feet per second and 2000 feet per second rate, respectively, will be

A. Doppler frequency shift of radar A will be one-fourth of Doppler frequency shift of radar B

B. Doppler frequency shift of radar A will be one-half of Doppler frequency shift of radar B

C. Doppler frequency shift of radar A will be double of Doppler frequency shift of radar B

D. Doppler frequency shifts of radar A and radar B will be same

Answer: Option A