Saturday, January 13, 2018

CBSE Class 9 - Biology - Why Do We Fall ill? (Q and A) (#cbseNotes) (#eduvictors)

Why Do We Fall ill? (Short Q and A)

CBSE Class 9 - Biology - Why Do We Fall ill? (Q and A) (#cbseNotes) (#eduvictors)

Q1: Define Health according to WHO?

Answer: According to WHO (World Health Organisation) health is a “state of physical, metal and social well-being of a person”.



Q2: When is WORLD HEALTH DAY celebrated?

Answer: On 7th April



Q3: Define Disease.

Answer: Any disturbance in the structure or function of any organ or part of body.



Q4: List any two conditions necessary for good health.

Answer:
(i) Good physical and social environment.
(ii) Good economic conditions.


Saturday, January 6, 2018

CBSE Class 6 - Sanskrit (संस्कृत) - Sample Question Paper - (2017-18) (#cbsepapers)(#eduvictors)

CBSE Class 6 - Sanskrit (संस्कृत) -
Sample Question Paper - (2017-18)

CBSE Class 6 - Sanskrit (संस्कृत) - Sample Question Paper - (2017-18) (#cbsepapers)(#eduvictors)

CLASS 10 - Biology - Heredity and Evolution – Unit Test Paper (#cbsePapers)(#eduvictors)

Heredity and Evolution
Unit Test Paper

CLASS 10 - Biology - Heredity and Evolution – Unit Test Paper (#cbsePapers)(#eduvictors)

Q1: Define the following:
a) Inheritance
b) Heredity
c) Phenotype
d) Genotype

Q2: How does the creation of variation in a species promote survival?


Q3: Give scientific reasons:

i. In sexual mode of reproduction greater diversities are generated.

ii. Phenotypic and genotypic ratios are different.

iii. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants


Q4: How do genes regulate the height of a plant ?


Tuesday, January 2, 2018

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

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

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.

Monday, January 1, 2018

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

Physics - Refraction From Lens

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


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)

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

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?