физикачееееек

физикачееееек

2nd Grade

18 Qs

quiz-placeholder

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физикачееееек

физикачееееек

Assessment

Quiz

Physics

2nd Grade

Practice Problem

Hard

Created by

Тома Илалова

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

        После какой реакции протон превращается в нейтрон:

р1 ® Y A-4 + He4

X A ® b 0

v~ + Y A

X A ® b 0 + v + Y A

Z               +1                  Z -1

            p1 + b 0 = n1 + v

n1 = p1 + b 0

+ v~

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

     Поглощение рентгеновских излучений:

Re = ò rl / dl

rl / al = 1/ el

Ф = Ф × е -mх

E = sT 4

E = asT 4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

   Энергетическая светимость абсолютно черного тела:

Re = ò rl / dl

   rl / al= 1/ el

Ф = Ф0× е - mх

E = sT 4

E = asT 4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

   Энергетическая светимость для серого тела:

Re = ò rl / dl

rl / al = 1/ el

Ф = Ф × е -mх

E = sT 4

E = asT 4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

    Спектр характеристического рентгеновского излучения:

сплошное

линейчатое

непрерывное

  прерывное

скачкообразное

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

     Закон Мозли для характеристического рентгеновского излучения:

   Re = ò rdl

                = A(z - B)

rl = al ×el

сel

= rl / al

E = sT 4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

      Эффективная доза:

  Ф = kIU 2 Z

   E =WT × H

     A = - dN/

dt

  E = H × m /WT

1.     T = ln 2/

l

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