CBSE Class 12 - Informatics Practices - Sample Question Paper - (2017-18) (#cbsepapers)(#eduvictors)

CBSE Class 12 - Informatics Practices -
Sample Question Paper - (2017-18)

CBSE Class 10 - Physics - The Human Eye and the Colourful World – Unit Test Paper (#eduvictors)(#cbsepapers)

The Human Eye and the Colourful World – Unit Test Paper

Q1: A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power which type?

Q2: Give reasons for the following:
i. Stars twinkle at night.
ii. The sun appears reddish early in morning.
iii. Planets do not twinkle.
iv. Red colour is used in danger signals.

Q3: A person walking in desert gets a illusion of seeing water. Name the phenomenon of light responsible for it.

Q4: Distinguish between Refraction and Dispersion.

CBSE CLASS 10 - Physics - Refraction From Lens - Worksheet (#cbseNotes)(#eduvictors)

Physics - Refraction From Lens

Q1: In refraction of light, what does Snell's Law state?

Answer: The ratio of sine of angle of incidence to the sine of angle of refraction remains constant subject to certain conditions. This is called refraction.


Q2: Which of the following property of light wave changes when it travels from one medium to another (having different optical densities)?

a. Wavelength
b. Speed of Light
c. Frequency

CBSE Class 8 - Science Chapter - Light (Unit Test) (#cbseNotes)(#eduvictors)

Light (Unit Test Paper)

Time: 1½ Hrs

Q1: If the angle between the mirror and the incident ray is 30°, what is value of the angle of reflection?

Q2(MCQ): Two plane mirrors are kept at the following angles one by one. In which case is the number of images formed the maximum?
a. 30° b. 60° c. 45° d. 90°

Note: (Q3 – Q8) Give One Word Answer

Q3: Is the reflection of light by the smooth walls of your house regular or irregular?

Q4: A plane mirror always forms the image of an object exactly on the reflecting surface. True or false?

Q5: Is the image formed by a plane mirror exactly of the same size as the object?

CBSE Class 10 - Sanskrit - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 10 - Sanskrit -
Sample Question Paper - (2017-18)

CBSE Class 12 - Multimedia and Web Technology - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 12 - Multimedia and Web Technology -
Sample Question Paper - (2017-18)

CBSE Class 12 - Computer Science - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 12 - Computer Science -
Sample Question Paper - (2017-18)