Question

हता -जुन्नर, जि -पुणे
श्री बेल्हेश्वर माध्यमिक व के.
aumenterade
इ.10 वी.त-व
परीक्षा क्र.10221
710
- Science part-1
गृहपाठ सन 20
Ques 1 The reaction of iron nails with copper sulphate solution is an example of
a) Combination b) Decomposition. c) Displacement d) Double displacement
reaction d)
Ques 2 is used to study the anomalous behavior of water.
C)
a) The calorimeter b) Joule's apparatus .c) Hope's apparatus , d) Thermas flask
Ques. 3. Water expands on reducing its temperature below
a) 0 b) 4 c) @ d) 12
Ques.4.
of light is responsible of twinkling of stars
a) Reflection biinternal reflection c) Dispersion
d) Refraction
Ques. 5. The image formed by a concave lens is always
a) real, inverted & diminished b) real, inverted & magnified
c) virtual, erect & magnified d) virtual, erect & diminished
d)
Ques. 6. Reddish brown deposit formed on iron nails kept in a solution of CuSO.is
a) Cub) Cu c) Cuo d) Cus
Ques. 7. In microscope following is used ?
a) plane b) convex c) concave
d) concave and convex
Ques, 8 does not occur during the production of rainbow
a) Refraction b) Dispersion c) Reflection
d) Induction
Ques. 9. The density of water is maximum at
a) 0 b) - 4 c) 100
d) 4
Ques, 10 Which colour shows maximum deviation when light is dispersed through priem?
a) Violet b) Red c) Yellow d) Blue​

Answer 1

Answer:

Step-by-step explanation:

→ कृपया अशा प्रकारे प्रश्न विचारू नका.

→ एकामागोमाग एक प्रश्न स्वतंत्रपणे विचारा.

→ जेणेकरून आपण तुमच्या प्रश्नाचे वेळेच्या मर्यादेत सहज आणि उत्तर देऊ शकतो