« previous next »

Author Question: A lens of focal length 25 cm is placed 50 cm from an object. On the opposite side of the lens at a ... (Read 42 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Jul 29, 2018
A lens of focal length 25 cm is placed 50 cm from an object. On the opposite side of the lens at a distance of 50 cm is a plane mirror. Where is the final image formed?
 
  A)
 
  50 cm from the lens on the object side
  B)
 
  35 cm behind the mirror
  C)
 
  35 cm in front of the mirror
  D)
 
  50 cm from the lens on the mirror side
  E)
 
  35 cm from the lens on the object side

Question 2

At what peak wavelength does an object at 37C (98.6F) radiate?
 
  A)
 
  94  10-6 m
  B)
 
  9.4  10-6 m
  C)
 
  29  10-6 m
  D)
 
  7.8  10-6 m
  E)
 
  78  10-6 m


kthug

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w
Muscles of the Torso Side Muscles of the Torso Side
Charles and Ray Eames, Side Chair, Model DCM. Charles and Ray Eames, Side Chair, Model DCM.
Hacking. Tapotement performed with the ulnar side of relaxed hands. Hacking. Tapotement performed with the ulnar side of relaxed hands.
Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ... Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ...
Apply pincer pressure to TrPs in sternocleidomastoid (SCM) muscle. Turn head to side to expose SCM; ... Apply pincer pressure to TrPs in sternocleidomastoid (SCM) muscle. Turn head to side to expose SCM; ...
Video: Role of transport in a cell

For a complete list of videos, visit our video library