1.) A concave mirror forms a real image at 17.0 cm from themirror surface along the principal axis. if the correspondingobject is at a distance of 36.0 cm, what is the mirrors focallength?

2.) The critical angle of refraction or calcite is 68.4 degreeswhen it forms a boundary with water. use this information todetermine the speed of light in calcite.

3.) Monochromatic light from a helium-neon laser (

(lambda =632.8nm) ) shines at a right angle onto thesurface of a diffraction grating that contains 130 960 lines/m.Find the angle at which one would observe the first-ordermaximum.

4.) A certain radio wave has a frequency of 2.0 * 10^6 Hz. Whatis its wavelength?

5.) Two point charges are 10.0 cm apart and have charges of (2.0 mu) C and (-2.0 mu) C respectively. what is the magnitude of the electric fieldat the midpoint between the two charges?

6.) The potential difference across a resistor is 4.4 * 10^2 V.If the resistance of the resistor is 1.8 k (Omega) , how muchcurrent flows through the resistor?

7.)what is the value of the unknown resistor in the circuitshown below if the equivalent resistance for the circuit is 21.20omega?

8.)Two equal charges are separated by 3.7 * 10^-10 m. The forcebetween the charges has a magnitude of 2.37 * 10^-3 N. What is themagnitude of q on the charges?

9.) What is the resistance of a resistor if the potentialdifference across the resistor is 4.0 V when a current of 10.0 Aflows through the resistor?

10.) An electron moves north at a velocity of 9.8 * !0^4 m/s andhas a magnetic force of 5.6 * 10^-18 N west exerted on it. If themagnetic field points upward, what is the magnitude of the magneticfield?

11.) A step-down transformer has 16000 turns on the primary and95 turns on the secondary. If the rms emf across the secondary coiliis 120 V, what is the maximum emf across the primary coil?

12.) A concave mirror forms a real image at 17.0 cm from themirror surface along the principal axis. If the correspondingobject is at a distance of 36.0 cm, what is the mirrors focallength?

13.) The figure below shows the energy levels for a hydrogenatom. What is the energy of the photon emitted when the electron ina hydrogen atom drops from energy level E5 to evergy level E2?

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