What is the longest focal length lens that will work

Reference no: EM13522061

You are taking a photograph of a poster on the wall of your dorm room, so you can't back away any farther than 2.0m to take the shot. The poster is 0.80m wide and 1.2m tall, and you want the image to fit in the 24 × 36 mm frame of the film in your camera. What is the longest focal length lens that will work?

Reference no: EM13522061

Questions Cloud

What is the speed of a satellite orbiting at that height : At what height above the earth is the free-fall acceleration 20% of its value at the surface. What is the speed of a satellite orbiting at that height

Explain the amount of energy absorbed by a person''s body : Compare this energy ( 23 Joules) to the amount of energy absorbed by a person's body if they jumped from a chair to the floor (assume that all of the energy from the fall is absorbed by the person and h=0.5 m).

Glycerine in water diffuses along a horizontal column : Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 2.0 cm2. The concentration gradient is 3.2 10-2 kg/m4, and the diffusion rate is found to be 5.9 10-15 kg/s. Determine the diffusion coefficient.

Explain what is the concentration of co3^2 : What is the concentration of CO3^2- in a 0.020 M solution of carbonic acid, H2CO3? For a carbonic acid, Ka1 = 4.2 x 10^-7 and Ka2 = 4.8 x 10^-11.

What is the longest focal length lens that will work : What is the longest focal length lens that will work?

Explain the hydronium-ion concentration in a solution : What is the hydronium-ion concentration in a solution formed by combining 150 mL of 0.10 M NaOH with 50 mL of 0.30 M HCL. Ba(OH)2(aq) + 2HCl(aq) -> BaCl2(aq) + 2H2O

Determine the cutoff wave length of potassium : work function of potassium is 2.225 eV. Find the cutoff wave length of potassium, find the frequency of the x-ray

Calculate this temperature : Calculate this temperature.

Define what is the initial cell potential : A voltaic cell consists of a Zn/Zn^2 + half-cell and a Ni/Ni^2 +half-cell at 25C. The initial concentrations of Ni^2 + and Zn^2 + are 1.70 M and 0.100 M, respectively. What is the initial cell potential

User Account

All Pages