Viewed Questions
Radar waves with $3.4 \mathrm{~cm}$ wavelength are sent out from a transmitter. Their speed is $3.00 \times 10^{8} \mathrm{~m} / \mathrm{s}$. What is their frequency?
Questions asked
4.?????? R L C ????????? ???????????????? ????????????? \( 300 \Omega \) ????????????????????????? \( 200 \Omega \) ?????????????????? ????????????? \( 600 \Omega \) ????????????????????? \( 2 A \) ??????????????????? ???????????????????
2. The situation shown in Fig. depict two tiny charge spheres. Find (a) the electric field \( E \) at point \( P \), (b) the force on a \( -4.0 \times 10^{-8} \mathrm{C} \) charge placed at \( \mathrm{P} \), and
????????????????????? \( 30^{\circ} \mathrm{C} \) ??????????????????????????????????????????????
Describe the image of an object positioned \( 20 \mathrm{~cm} \) from a concave spherical mirror of radius \( 60 \mathrm{~cm} \). Ans. virtual, erect, \( 60 \mathrm{~cm} \) behind mirror, magnified 3 times
An object \( 7.0 \mathrm{~cm} \) high is placed \( 15 \mathrm{~cm} \) from a convex spherical mirror of radius \( 45 \mathrm{~cm} \). Describe its image. Ans. virtual, erect, \( 9.0 \mathrm{~cm} \) behind mirror, \( 4.2 \mathrm{~cm} \) high
Ankur S
Numerade educator
36.12 If you wish to take a photo of yourself as you stand 3 m in front of a plane mirror, for what distance should you focus the camera you are holding? Ans. 6 m
