7 ) Distant galaxies are "red-shifted" due to their motion with respect tothe Earth: In other words, the light we observe appears to be more red in color(larger in wavelength) than if the galaxies were at rest. Scientists interpret thisobservation to mean that the distant galaxies are moving away from Earth.TRUEFALSEUnpolarized light encounters a polarizer oriented 20 degrees fromvertical. A second polarizer reduces the light intensity to zero. What angle could thetransmission axis of the second polarizer make with respect to vertical?a) 90" or -90b) 110 or -70c) -110 or 70d) -65° or 65"The radius of curvature of a spherical, convex, mirror is 30 cm. Whatis its focal length?a) 60 cm=(b) 15 cmc) -15 cmd) -60 cm

Given data : Distant galaxies are "red-shifted due to their mation with respect to the Eart! In…

) Distant galaxies are "red-shifted" due to their motion with respect to the Earti In other words, the light we observe appears to be more red in color (larger in wavelength) than if the galaxies were at rest. Scientists interpret this observation to mean that the distant galaxies are moving away from Earth. TRUE FALSE

) Distant galaxies are "red-shifted" due to their motion with respect to the Earti In other words, the light we observe appears to be more red in color (larger in wavelength) than if the galaxies were at rest. Scientists interpret this observation to mean that the distant galaxies are moving away from Earth. TRUE FALSE