A student uses this apparatus to investigate a converging lens - Edexcel - GCSE Physics - Question 5 - 2011 - Paper 1
Question 5
A student uses this apparatus to investigate a converging lens.
He sets the object distance at 15.0 cm. He moves the screen until he can see a clear image and then ... show full transcript
Worked Solution & Example Answer:A student uses this apparatus to investigate a converging lens - Edexcel - GCSE Physics - Question 5 - 2011 - Paper 1
Step 1
5(a)(i) Point plotted
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To answer this part, you must ensure that the point corresponding to the object distance of 15.0 cm and image distance of 60.0 cm is plotted correctly on the graph, with an accuracy of +/- ½ square.
Step 2
5(a)(ii) Smooth curve through at least 5 crosses
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A smooth curve must be drawn connecting the plotted points through at least five intersections. This curve should visually represent the trend of the data without clear tramlining.
Step 3
5(a)(iii) Description of the relationship
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The relationship shows that as the object distance increases, the image distance decreases. This indicates a non-linear relationship that changes at a varying rate, rather than a proportional one.
Step 4
5(a)(iv) Description including two of the following
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The image produced is (1) magnified and (2) virtual, meaning that the image can be perceived with the right orientation.
Step 5
5(b) Similarities and differences
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Both reflectors and refractors use lenses as eyepieces, produce images of distant objects, and employ magnification to create real images.
Differences include:
Reflectors use mirrors to collect light, whereas refractors use lenses.
Reflectors yield better quality images and can reduce aberration, while refractors tend to be easier to support.
